It would help if it was done with even the slightest thought. problems with this experiment: 1: The terrain, hiking through the woods is an entirely seperate experience than walking through a paved area. The entire point of this device is to reduce the fight with intertia that happens when a strapped pack is dragging you, going UP and DOWN while traversing uneven terrain. This alone makes this entire experiment irrelevant. 2: The locked and unlocked tests were done immediately one after the other, when they should have been done after the subject had rested and recovered between trials. Lets say for the sake of argument this ISNT used for hiking and its simply to reduce stress to a disabled user... not resting renders this moot because if you're already straining to move on a flat surface then doing double the work(two consecutive trials) eliminates the validity. I find it disturbing that a doctor did not notice these obvious flaws, I can only imagine how "competent" he is in other research that matters, like people's body. Also using the word "basically" in almost every sentance, is annoying AF.
Some good points actually. I've been waiting for someone like you to come along and would be happy to ship you this bag if you're willing to break down the dynamic engineering analysis of the movement for everyone to understand on a video in detail. I think it deserves that explanation from someone who can properly do it. I know I'm basically acting as the wheel and the bag is the chassis floating on me and the tension system is shock absorption- but I have not done this type of engineering problem since college...
This review was far more comprehensive and of significantly higher quality than I anticipated going into it. Thank you for your valuable data and anecdotal report. Stabilization devices are a burgeoning market, from vehicles, to electronics, to - now, backpacks. If i had to hedge my bets, the majority of developments in this specific or similar use cases will emerge from the military applications initially, and I am excited to see more of this technology enter the consumer market. Apropos of your videos in particular, I think there is a very interested audience for this sort of material, and speaking from my perspective alone, I am very interested in seeing further similar such content from you. Once again, your work is thoroughly enjoyed and appreciated. Thank you!
Thanks! I wouldn't quite say it's completely demystified- hoping someone with access to more sophisticated equipment might pick up the bag too to help confirm or detail out the force loading profiles to the shoulders or lower extremity at different speeds/weights.
TY for this video. I just got the Tac pack myself. Pal got it for me. She watched me modify a Cdn. army 1982 pattern rucksack into a DIY version of this. I used dual wireframes, pivots to keep the spacing, and went with latex tubing. Clunky but it worked!
Big 65 liter hiking packs are like 4.5lbs so idk if this would be worth it at 7.5 lbs for half the size. It’s probably better to have a light pack without suspension than a pack that weight three or four times as much with suspension.
Bonjour ! Ingénieux ! Ou peut on trouver ce sac en vente ?? Merci pour le partage Phil Good morning ! Ingenious! Where can I find this bag for sale? Thanks for sharing Phil
Great video mate, just one suggestion, may be have the water mark logo either opaqued or smaller. it was a little too distracting while watching the video. otherwise great video
Great video! Well explained I would like to understand the product and develop the same. I feel this product could solve the weight problem, we you be able to ship this bag ?
Thanks for the very clear and in-depth review. I believe what I got from the video was that overall it doesn't provide much benefit to the user besides maybe when declining back downhill after reaching the top point of your hike. Overall, as long as you are already fine with what you have and don't need the benefit of less force on your knees going downhill then a normal pack will probably do the job. That's kind of what I got from the video, would that be a safe assumption or am I missing something?
The increased acceleration makes total sense when you think about it, as you push off the ground you are pushing against a lower weight and can accelerate more, i.e. on the flip side the 'locked' pack reduces your acceleration because you are trying to lift the additional weight.
It's been a long time since I've taken engineering dynamics and that's not my speciality at the moment. The issue is a bit more complicated as acceleration is affected in each orthogonal plane, not just vertically. Increased cadence means the limb will also undergo shorter cycles during gait which will show up as more aggressive acceleration/deceleration as well. I'm hoping a really smart engineer will be able to diagram the system of movement out and show the transfer of PE and KE in the elastic pulley system holding the pack and how the body is interacting with it to explain the physics more clearly. Hopefully this doesn't require Veritasium lol. I asked several buddies who are engineers but they were a bit stumped themselves. I guess some old man advice for the kids...When you ask in school when you are going to use what you are learning- here ya go 😂.
Thank you for a video or indeed anything online finally honestly informing me about this pack system. For all who feel uncertain about what to think of this pack even after watching this video - it does not work. If you wanted to spend a lot of money on a pack I recommend Hill People Gear. All of their packs come with a harness that spreads the weight across your shoulders very well and have good belts you can buy (separately $$) and they come with excellent compression straps that squish the whole pack tight against your back - and the idea of a floating pack is a neat idea that doesn't make your load feel better but a compressed pack that is tight and not shifting around is an established idea that does work - especially with a very nice harness. Ok so yes a nice praise for hill people gear. Super expensivr but cheaper than this and they ship international.
I see this backpack making it so every step is not as impactful on the forces of the weight of the backpack on your feet is not going make the backpack way less it's just going to exorb the impact and not make it all hit at one up this made sense
I have seen the youtube add, for this system and I am curious about the legitimacy of the tech and how it would perform in a cycling and other recreational riding or daily commuters needs (keeping in mind you can lock the frame) but then, I ride bike alot and already have a non - floating backpack. Not alot of reviews or mention of the product line really
Yes, I've wondered the same thing as well in regards to someone using it while in a big city like New York. Perhaps someone will put that to the test for us.
I was wondering the same thing as I do equal amounts of rucking and riding my full suspension mountain bike lugging the family’s gear. Let’s say you’re standing up pedalling up a steep hill, I wonder if the weight would move in the counter direction causing strain/more resistance.
The pack will move relative to whatever up/down motion you are generating from pedalling, but I think it would be too dangerous to use unlocked on a bike because you leaning forward too much at anytime could potentially throw you off balance which is why they say to lock it if you are near cliffs when on foot.
@@integritychiropractic wow, I'm looking to grab this bag due to my L4/L5 herniated disc, scoliosis and sciatica down my left side. I've been quite active with my young kids, often rucking a heavy 5.11 day pack while they ride their bikes and need help up hills on single tracks. I'll be on a One Wheel and Sondor 750 watt foldable ebike this spring summer while I train my 5 year old son MX in the forest. I'll have to figure out when it is appropriate to lock or unlock the bag. Thanks for the review.
@@BWT599 Hey Brother how has your trials worked out? I’m a Retired US Marine with L5S1 operation that has nearly knocked me out, but I’m trying to get back what ever is possible? I hope it’s worked for You
Quite the detailed review. My only critique would be that it would’ve been nice to get shots of the bag in action. Maybe have someone follow you closer with the camera. All the data is nice, but shots of the bag in action on your back would’ve been a nice compliment.
Thanks for the comment- I figured they had enough action shots on their ads. But there were a few action shots with me hiking with it at the end, but I'm guessing you wanted the close up.
@@integritychiropractic hi thanks for he response. There are action shots on the ads, however ads are ads right. You know people want to see it in action from a consumer POV rather than a paid actor. I’m very impressed with the review though. Extremely thorough and informative. 👍👍👍👍👍
A have a question ur a Chiropractor right do u think if I wore this during my military duty I have a curvature of the spine I would say what it's called but I can't quite spell it do u think it would help with my back and help give me a overall better posture when I use this backpack Try to make it a durable plastic frame so it would be much lighter
Was interested in purchasing a backpack but it appears the company has gone radio silent on their Kickstarter and Indiegogo for over a year now, ignoring the pleading comments for their backpacks
Hi, such a helpful video. Could you maybe help me with the tension? No matter how much I "play" around with it, my backpack keeps on slamming quite hard every step I take... whether the handle is up or down... Any idea how to fix this?
Hmm 8kg is under it's weight limit, but I ran into that issue myself at times, especially if I hit some uneven terrain or I take a big step up. I haven't hiked yet this season but I did try to tighten the tension as I'm walking with it to help land in a better sweet spot. I think either the cord could have a better spring constant or the rails should be a tad longer. Also, do you release the tension from the cord when you are not using it? I believe keeping it under constant tension might slack the bungie cord over time.
I would love to test this for you in a military capacity. The standard for us is 12 miles in 3 hours with a 45 lb pack dry. That means, without added water yet. We'd have to be in uniform and boots. I would love to record data for you with a traditionaly pack we would use and then this floating pack to compare the differences. I am very interested in this data because if it proves that it can save service members bodies for the same effort or increased effort, it will save the governemnt money in healthcare towards service members feet, knees, and backs. I'll be the test subject!!! I am 5'6" so im already at a height disadvantage for ruck marching. If this can prove that short guys would perform better then it will also prove that the taller guys would also benefit from this. For female ruckers, they too will benefit as maby do not have the bone density for the load in the long haul. I think this can be an awesome experiement if you're into it
I think the makers had a contract with the military to investigate the potential- but not sure what came of it or if there are more trials planned. Probably a better question to ask them. Thanks for your service, and to all the US military on this thread.
Would love to see a child or a small, petite woman put that thing back together. It's an interesting design and concept, and I do think it has some merit, but some practical considerations need to be considered. One, it very much does add excess weight and complexity (and points of failure/breakage). When I am backpacking, I absolutely don't want my gear to potentially break while I'm out away from civilization. Two, I only really use a backpack when I am backpacking, and I want it to be light as possible for comfort. This adds enough weight, that while the system helps to counter balance that, one can still achieve same with a simpler method of packing less and lighter stuff. I don't hunt, myself, but I could imagine that you would need a much beefier pulley system and especially elastic rope in there to deal with the 70 to 100 plus lbs, and you would need significantly more volume. On a side, and more personal note. 2023/24 is calling you to let you know that you don't need very heavy 1000D Cordura fabrics to get a robust, long lasting material. Look into things like Ultra and UltraX 200 and 400.
@@integritychiropractic Thank you! I’m trying to combine weighted calisthenics with this & trek running It seems like a lot less impact force for similar gains when compared to a weighted vest for example
@@seenitalready Agreed. I've thought about changing out the bungie cord they use with one that has more resistance to reduce some of the travel to avoid hitting the rail guards.
This could be an interesting case study in people who exhibit critical thought upfront (and posses a mechanical inclination) vs those who are quick to trust new information. Mechanics arnt my specialty perse but the mechanism here, in and of itself seems antithetical to the act of carrying a weighted load. Im sure there are some very niche activities in which this thing would be beneficial but walking/hiking dont strike me as applicable.
Thanks for the comment. I like to be thorough for the nerds like me😅. I always time stamp in the description and RUclips has fast playback now for the people looking for speediness.
Rehash of the same question below: As mentioned at the end of the video, it's situational I think. Minor weight penalty, possible increase in energy expenditure with running (which most people won't be doing), but potentially less knee discomfort coming down a grade when walking/hiking- That might be useful enough for some people because they can enjoy the outdoors again. If you're in good shape and healthy, you're probably good with your current set up :)
finally a balanced, well edited, thorough unbiased review. Thank you
It would help if it was done with even the slightest thought.
problems with this experiment:
1: The terrain, hiking through the woods is an entirely seperate experience than walking through a paved area. The entire point of this device is to reduce the fight with intertia that happens when a strapped pack is dragging you, going UP and DOWN while traversing uneven terrain. This alone makes this entire experiment irrelevant.
2: The locked and unlocked tests were done immediately one after the other, when they should have been done after the subject had rested and recovered between trials. Lets say for the sake of argument this ISNT used for hiking and its simply to reduce stress to a disabled user... not resting renders this moot because if you're already straining to move on a flat surface then doing double the work(two consecutive trials) eliminates the validity.
I find it disturbing that a doctor did not notice these obvious flaws, I can only imagine how "competent" he is in other research that matters, like people's body. Also using the word "basically" in almost every sentance, is annoying AF.
Some good points actually. I've been waiting for someone like you to come along and would be happy to ship you this bag if you're willing to break down the dynamic engineering analysis of the movement for everyone to understand on a video in detail. I think it deserves that explanation from someone who can properly do it. I know I'm basically acting as the wheel and the bag is the chassis floating on me and the tension system is shock absorption- but I have not done this type of engineering problem since college...
This review was far more comprehensive and of significantly higher quality than I anticipated going into it. Thank you for your valuable data and anecdotal report. Stabilization devices are a burgeoning market, from vehicles, to electronics, to - now, backpacks. If i had to hedge my bets, the majority of developments in this specific or similar use cases will emerge from the military applications initially, and I am excited to see more of this technology enter the consumer market. Apropos of your videos in particular, I think there is a very interested audience for this sort of material, and speaking from my perspective alone, I am very interested in seeing further similar such content from you. Once again, your work is thoroughly enjoyed and appreciated. Thank you!
This is such a well made video - Even explaining so much as a squeak in the lock mechanism - Nice!
Thanks for v. thorough review. It helped to demystify and saved me $500.
Thanks! I wouldn't quite say it's completely demystified- hoping someone with access to more sophisticated equipment might pick up the bag too to help confirm or detail out the force loading profiles to the shoulders or lower extremity at different speeds/weights.
this is very cool what you've done here. you're answering questions i didn't even know i wanted the answer to before watching this
TY for this video. I just got the Tac pack myself. Pal got it for me. She watched me modify a Cdn. army 1982 pattern rucksack into a DIY version of this. I used dual wireframes, pivots to keep the spacing, and went with latex tubing. Clunky but it worked!
Big 65 liter hiking packs are like 4.5lbs so idk if this would be worth it at 7.5 lbs for half the size. It’s probably better to have a light pack without suspension than a pack that weight three or four times as much with suspension.
Bonjour ! Ingénieux ! Ou peut on trouver ce sac en vente ?? Merci pour le partage Phil
Good morning ! Ingenious! Where can I find this bag for sale? Thanks for sharing Phil
Great video mate, just one suggestion, may be have the water mark logo either opaqued or smaller. it was a little too distracting while watching the video. otherwise great video
wwwoowww this a real BAG review!!!!! Amazing!!!
Great video! Well explained I would like to understand the product and develop the same. I feel this product could solve the weight problem, we you be able to ship this bag ?
Thanks for the very clear and in-depth review. I believe what I got from the video was that overall it doesn't provide much benefit to the user besides maybe when declining back downhill after reaching the top point of your hike. Overall, as long as you are already fine with what you have and don't need the benefit of less force on your knees going downhill then a normal pack will probably do the job. That's kind of what I got from the video, would that be a safe assumption or am I missing something?
You got it.
Sam Porter Bridges: -wait that's illegal.
The increased acceleration makes total sense when you think about it, as you push off the ground you are pushing against a lower weight and can accelerate more, i.e. on the flip side the 'locked' pack reduces your acceleration because you are trying to lift the additional weight.
It's been a long time since I've taken engineering dynamics and that's not my speciality at the moment. The issue is a bit more complicated as acceleration is affected in each orthogonal plane, not just vertically. Increased cadence means the limb will also undergo shorter cycles during gait which will show up as more aggressive acceleration/deceleration as well. I'm hoping a really smart engineer will be able to diagram the system of movement out and show the transfer of PE and KE in the elastic pulley system holding the pack and how the body is interacting with it to explain the physics more clearly. Hopefully this doesn't require Veritasium lol. I asked several buddies who are engineers but they were a bit stumped themselves. I guess some old man advice for the kids...When you ask in school when you are going to use what you are learning- here ya go 😂.
Thank you for a video or indeed anything online finally honestly informing me about this pack system. For all who feel uncertain about what to think of this pack even after watching this video - it does not work. If you wanted to spend a lot of money on a pack I recommend Hill People Gear. All of their packs come with a harness that spreads the weight across your shoulders very well and have good belts you can buy (separately $$) and they come with excellent compression straps that squish the whole pack tight against your back - and the idea of a floating pack is a neat idea that doesn't make your load feel better but a compressed pack that is tight and not shifting around is an established idea that does work - especially with a very nice harness. Ok so yes a nice praise for hill people gear. Super expensivr but cheaper than this and they ship international.
Thanks for the comment and info Daniel. They actually do look like pretty nicely designed packs. Your turn to make the next backpack video now :)
Try a black diamond distance 15 it fits on the back differently since it's running straps.
Great review. TY for shearing.
I see this backpack making it so every step is not as impactful on the forces of the weight of the backpack on your feet is not going make the backpack way less it's just going to exorb the impact and not make it all hit at one up this made sense
I have seen the youtube add, for this system and I am curious about the legitimacy of the tech and how it would perform in a cycling and other recreational riding or daily commuters needs (keeping in mind you can lock the frame) but then, I ride bike alot and already have a non - floating backpack. Not alot of reviews or mention of the product line really
Yes, I've wondered the same thing as well in regards to someone using it while in a big city like New York. Perhaps someone will put that to the test for us.
I was wondering the same thing as I do equal amounts of rucking and riding my full suspension mountain bike lugging the family’s gear. Let’s say you’re standing up pedalling up a steep hill, I wonder if the weight would move in the counter direction causing strain/more resistance.
The pack will move relative to whatever up/down motion you are generating from pedalling, but I think it would be too dangerous to use unlocked on a bike because you leaning forward too much at anytime could potentially throw you off balance which is why they say to lock it if you are near cliffs when on foot.
@@integritychiropractic wow, I'm looking to grab this bag due to my L4/L5 herniated disc, scoliosis and sciatica down my left side. I've been quite active with my young kids, often rucking a heavy 5.11 day pack while they ride their bikes and need help up hills on single tracks. I'll be on a One Wheel and Sondor 750 watt foldable ebike this spring summer while I train my 5 year old son MX in the forest. I'll have to figure out when it is appropriate to lock or unlock the bag. Thanks for the review.
@@BWT599 Hey Brother how has your trials worked out? I’m a Retired US Marine with L5S1 operation that has nearly knocked me out, but I’m trying to get back what ever is possible? I hope it’s worked for You
Quite the detailed review. My only critique would be that it would’ve been nice to get shots of the bag in action. Maybe have someone follow you closer with the camera. All the data is nice, but shots of the bag in action on your back would’ve been a nice compliment.
Thanks for the comment- I figured they had enough action shots on their ads. But there were a few action shots with me hiking with it at the end, but I'm guessing you wanted the close up.
@@integritychiropractic hi thanks for he response. There are action shots on the ads, however ads are ads right. You know people want to see it in action from a consumer POV rather than a paid actor. I’m very impressed with the review though. Extremely thorough and informative. 👍👍👍👍👍
Thank you for this review. Excellent work.
Thks for the v detailed walkthrough
A have a question ur a Chiropractor right do u think if I wore this during my military duty I have a curvature of the spine I would say what it's called but I can't quite spell it do u think it would help with my back and help give me a overall better posture when I use this backpack
Try to make it a durable plastic frame so it would be much lighter
Scoliosis? I do not think it will help.
Was interested in purchasing a backpack but it appears the company has gone radio silent on their Kickstarter and Indiegogo for over a year now, ignoring the pleading comments for their backpacks
I wonder how well that pack would work on a bicycle or motorcycle
Such a useful video! Thank you!
Glad it was helpful!
Hi, such a helpful video. Could you maybe help me with the tension? No matter how much I "play" around with it, my backpack keeps on slamming quite hard every step I take... whether the handle is up or down... Any idea how to fix this?
how much weight do you have in the pack?
@@integritychiropractic probably about 8kgs (going hiking for a week)
Note that I'm a woman, 173 cm
Hmm 8kg is under it's weight limit, but I ran into that issue myself at times, especially if I hit some uneven terrain or I take a big step up. I haven't hiked yet this season but I did try to tighten the tension as I'm walking with it to help land in a better sweet spot. I think either the cord could have a better spring constant or the rails should be a tad longer. Also, do you release the tension from the cord when you are not using it? I believe keeping it under constant tension might slack the bungie cord over time.
I would love to test this for you in a military capacity. The standard for us is 12 miles in 3 hours with a 45 lb pack dry. That means, without added water yet. We'd have to be in uniform and boots. I would love to record data for you with a traditionaly pack we would use and then this floating pack to compare the differences. I am very interested in this data because if it proves that it can save service members bodies for the same effort or increased effort, it will save the governemnt money in healthcare towards service members feet, knees, and backs. I'll be the test subject!!! I am 5'6" so im already at a height disadvantage for ruck marching. If this can prove that short guys would perform better then it will also prove that the taller guys would also benefit from this. For female ruckers, they too will benefit as maby do not have the bone density for the load in the long haul. I think this can be an awesome experiement if you're into it
I think the makers had a contract with the military to investigate the potential- but not sure what came of it or if there are more trials planned. Probably a better question to ask them. Thanks for your service, and to all the US military on this thread.
Where can you buy this?
I want to buy this bag how can I buy
Where can I order this. Im in canada atm
Why i feel stressful just watching all the struggles..😄😄
The struggle is real 😂
It looks cool but I imagine it would throw you off balance especially if the pack can differ in size and weight.
Apparently the company has closed.
If you lie prone, it would fly up and impinge on your helmet, keeping you form looking forward.
The glide run comes after the lock on. What if the other way around?
Did some tests on the treadmill too- same result pretty much.
many thanx
where do i get the backpack??
Thanks
Would love to see a child or a small, petite woman put that thing back together.
It's an interesting design and concept, and I do think it has some merit, but some practical considerations need to be considered. One, it very much does add excess weight and complexity (and points of failure/breakage). When I am backpacking, I absolutely don't want my gear to potentially break while I'm out away from civilization. Two, I only really use a backpack when I am backpacking, and I want it to be light as possible for comfort. This adds enough weight, that while the system helps to counter balance that, one can still achieve same with a simpler method of packing less and lighter stuff.
I don't hunt, myself, but I could imagine that you would need a much beefier pulley system and especially elastic rope in there to deal with the 70 to 100 plus lbs, and you would need significantly more volume.
On a side, and more personal note. 2023/24 is calling you to let you know that you don't need very heavy 1000D Cordura fabrics to get a robust, long lasting material. Look into things like Ultra and UltraX 200 and 400.
U wouldn’t go prone with a day sack on. You would take it off first u lizard
32 mins Damn, but good review .
How do you think this & plyometrics would preform in tandem?
Jumping jacks are smooth with it, but sometimes you can push into the limits of the track.
@@integritychiropractic Thank you! I’m trying to combine weighted calisthenics with this & trek running
It seems like a lot less impact force for similar gains when compared to a weighted vest for example
@@seenitalready Agreed. I've thought about changing out the bungie cord they use with one that has more resistance to reduce some of the travel to avoid hitting the rail guards.
@@integritychiropractic Good idea - When I get my own, I’ll try to remember that - God bless!
Awesome review. Definitely subscribing.
Are they still selling these?
It seems like no based on comments from others.
@@integritychiropractic oh wow thats a bit sad. Seems like no one liked to push this project.
How do you record the G with, please?
Plantiga
How much does this sucker weigh?
Around 10 lbs if I recall correctly
I really want it. But the price is so high!
한국에서는 구매가 안되나요? 아마존에 재품 검색이 안됩니다
I have stereo problems on headphone. Am I alone?
This could be an interesting case study in people who exhibit critical thought upfront (and posses a mechanical inclination) vs those who are quick to trust new information. Mechanics arnt my specialty perse but the mechanism here, in and of itself seems antithetical to the act of carrying a weighted load. Im sure there are some very niche activities in which this thing would be beneficial but walking/hiking dont strike me as applicable.
I think you would get a lot more views if you also made a condensed version of this video. Keep it under 3 minutes. But thanks for the review 😁👍
Thanks for the comment. I like to be thorough for the nerds like me😅. I always time stamp in the description and RUclips has fast playback now for the people looking for speediness.
I guess the difference would like carrying a dead pig or a lived pig. ;)
A very compliant pig that is attuned to simple harmonic oscillation I guess?
They need a ruck version
I came here cus a guy was talking about this backpack being garbage even tho he never put it to the test will looks like he wrong
Still it is impossible to buy it, hope sellers not just a some scammers.
You need to compare it to a normal pack, not just the locked pack. Also, "Integrity Chiropractic" is an oxymoron.
Make a diy floating backpack bro
So does it work or not? jesus
Rehash of the same question below: As mentioned at the end of the video, it's situational I think. Minor weight penalty, possible increase in energy expenditure with running (which most people won't be doing), but potentially less knee discomfort coming down a grade when walking/hiking- That might be useful enough for some people because they can enjoy the outdoors again. If you're in good shape and healthy, you're probably good with your current set up :)
Hi Julian the answer is no it does not work.
exactly what i felt after watching the video.
You seem nervous talking that's ok man we all have those moments
tldr: this backpack is bullshit
Silly invention.