Sierra Designs Flex Capacitor 40-60 Pack

2023-03-20T20:00:00

No, I have yet to do a full test with this pack but so far I love what I can put in there and how it packs in. I like the way it sends out or fat is up instead of gets taller. Plenty of adjustments and very comfortable to wear. Looking forward to giving it a full test on a big trip.

Joel W.

Originally posted at

2023-02-22T19:00:00

The best backpack I have. It's quite reliable, spacious, comfortable, with convenient pockets on the straps and waist belt.

Oleksandr P.

Originally posted at

2023-01-23T19:00:00

I really wanted this pack to work for me as it has just the features I want. However I fell between sizes and just couldn't get comfortable with my max load of 40 lbs. I think if it fits you you'll be very happy

Jeff Y.

Originally posted at

2023-01-18T19:00:00

Comfortable and lightweight backpack. I like everything about this backpack but it needs to be tested on a hike.

OLEKSANDR V.

Originally posted at

2023-01-18T19:00:00

This pack is awesome. It replaces at least 2 packs by expanding from 40-60 liters. Quality from Sierra Designs is superb. The front shoulder and hip pockets are fantastic for holding odds and ends that you want quick access to while hiking. I can't say enough about how great this pack is. Just buy it, you won't regret it.

Andrii I.

Originally posted at

2023-01-04T19:00:00

I really like this pack. I'm able to pack tons of stuff inside. It fits my inflatable sleeping pad, quilt, 2 person tent, all my stove and cooking supplies, pillow, water filter kit, puffer jacket, rain/wind breaker, spare socks, TP, and a full size backpackers cache bear canister inside. Outside I'm able to strap half a foam sleeping pad to the back for my dog to sleep on and to use as a place to sit while at camp. There is also room inside for a water bladder and storage for Nalgene bottles on each side of the pack. I've had framed packs from competitors in the past and loaded them with this much stuff and they didn't feel as light as the load does in this pack. It's really impressive how the Y frame distributes the weight. I'll be picking up a 60-75 liter model next. The performance far exceeds the retail price of these packs!

Brian

Originally posted at

2022-10-27T20:00:00

Lightweight and comfortable and easy to use.

steven p.

Originally posted at

2022-10-06T20:00:00

I have wanted it for a long time

Serhii K.

Originally posted at

2022-09-05T20:00:00

This is my third Flex Capacitor in my family. We love this pack! It's features are durable and comfortable. I love it's ability to be fast and light for weekend trips, and big and heavy for up to 10 day trips.

Keno G.

Originally posted at

2022-07-31T20:00:00

So the game is always only take what you need, but in my experience, things start out tidy and tiny and neat and orderly. Half way thru the trip or trail I find I can no longer maintain the perfection that was when I started. No big deal this thing expands and punches way above its weight class. Everything is easy to get to, and I find this is my go to for 4-14 days out on the trail. I really cannot wait to use it more.

Sam R.

Originally posted at

2022-07-18T20:00:00

I got this backpack a couple of months ago for a trip out west. My kids are old enough now to carry their own loads so I figured it was time to get a smaller and lighter backpack for myself. This pack is very comfortable to me and fits me well, I'm 5"10 and 200lbs. The one thing I don't like about it is the top pocket. It can hardly hold anything at all as it is very small, it seems like an afterthought. I feel like it should be a little bigger or just not have it all. Other than that this pack does exactly what it needs to do. Help me haul my stuff from campsite to campsite in a comfortable manner!

Joshua M.

Originally posted at

2022-06-29T20:00:00

Pros: Pack body, frame, compression system, zip lid, hip & shoulder pockets pockets are outstanding. All those components are essentially perfect for me. Cons: Shoulder straps and hip belt do really not live up to the rest of the pack. Shoulder straps too narrow and stiff and rub into collar bone. Hip belt too thin, unsupportive and cants/tilts with a moderate amount of weight. To combat this you have to really crank down, and since cushion is sub-standard, hurts the hips. Needs to be a better transition from the lumbar pad to hip belt (see Mystery Ranch packs for an example of how it's done right). They should ditch the mesh side water bottle pockets and make them solid fabric for durability. Lastly, sizing really needs to go back to separate small, medium, large for torso.

Nick T.

Originally posted at

2022-06-29T20:00:00

I did a lot of research, looking for a backpack, and this one does not disappoint! It's a great size and sits very comfortably, i would recommend it to anyone and will definitely buy another one myself

Lindsay D.

Originally posted at

2021-10-06T20:00:00

This is a well conceived and well built pack. And it supports a heavy load -35 lbs for me - well. The shoulder pockets work well for 1/2 L or 3/4 L water bottles. The only negative comment is with the fit. I have an 18" torso and the s/m is slightly too long for optimum shoulder fit. I'd say the minimum torso length would be 19". SD should never have nixed having three sizes since there is no torso length adjustment. For example, the REI Flash 55 has three torso lengths available, which greatly increases the chance for a good fit. I'm keeping this pack, however, despite the less than great fit since I'm beyond the return window.

Gear u.

Originally posted at

2021-09-12T20:00:00

The Flex Capacitor is the perfect pack for a 1-5 day backpack, in my opinion. This is the most comfortable pack that I have used to date, the weight distributes perfectly, and the exterior pockets are amazing. Works great as a day hike pack from basecamp, no need to bring an extra pack.

Christie D.

Originally posted at

2021-08-08T20:00:00

Felt really good on my back almost like I was not carrying anything at all. One of the water bottle pockets got a small rip 10-20 uses and I can't tell you how. I wish it had a couple of side pockets but all in all it is my favorite overnight pack I own 4. I thought the water bottle pockets on the shoulder straps were dumb until I used them, after which I loved them!!!

Mark h.

Originally posted at

2021-07-26T20:00:00

All practice hikes and shake downs. The pack is performing well. I look forward for the through hike on the AT.

Dale C.

Originally posted at

2021-07-19T20:00:00

I spent years borrowing my friend's 15-year-old Kelty backpack, and I was first struck with how amazingly light the Flex Capacitor was in comparison. I am a 45-year-old, 5' 9", 140 lbs casual hiker and backpacker. As I get older, carrying weight becomes more difficult, so its light weight and comfort level was a big factor in my purchase of the 40-60 Flex Capacitor in May, 2021. I've been extremely happy with the design and versatility of the pack. I recently disassembled the Y-frame to take the pack as carry-on luggage on a flight, and with some practice, it was easy to disassemble and reassemble. I also really like the flex design with the gusset and straps to shrink/grow the volume to keep things tight and comfortable. I have so far mostly used it as a day pack on longer hikes, and the various pockets have served me well for quick access to water, rain shell, snacks, and places to stow trekking poles and hats/helmets. I was a bit concerned about the ruggedness and longevity of the pack given its light weight, but no more: I just returned from a hike where I put that to the test. On a 13-mile hike wearing the Flex Capacitor in RMNP, I began to have some altitude sickness above 12,000 feet, and with weather changing we decided to bail. If you've had altitude sickness, you'll understand that I just wanted to get off the mountain fast and feel better, so at times I did a bit of screeing down the talus field, where my rear end and bottom of the pack slammed and scraped across the rough and sometimes sharp talus boulders. In the back of my mind, I was ready to kiss the bottom of my Flex Capacitor good-bye, but to my surprise it held up without any signficant tears or deep abrasions! I have not yet used the pack fully loaded, but am going on a 4-day 40-miler in September and have no doubts that the pack will serve me well.

Adam

Originally posted at

2021-06-13T20:00:00

I really love the flexibility of this pack with the compression capability, sturdy frame, and comfy hipbelt (all in a pretty lightweight pack). It's didn't fit me quite right, though. I have a pretty short torso for my height(18in), and I couldn't get the shoulder straps to fit properly. This would be a great pack for someone with a slightly longer torso.

Matt M.

Originally posted at

2021-06-02T20:00:00

I love this pack. I carried 30lb and it didn't feel like a thing! The frame is very comfortable. It doesn't poke at odd places and the pack fits like a glove. This has to be the lightest pack out there that can carry a heavy load comfortably. Other features that I found extremely useful - large hip belt pockets that can fit any phone, the mesh shoulder pouches to keep a small camera handy, the side pockets are durable and stretchy - a nalgene won't fall out. My only complain would be that all the straps make the pack really messy, which annoys me. A nice mechanism to stow the straps or tuck them in somewhere would be nice.

Nitish G.

Originally posted at

2021-05-26T20:00:00

I purchased this pack 2 years ago and have used it on quite a few trips since then. The pack is very comfortable keeps the center of mass close to you back for good control and has many well thought out and executed ideas and designs. I love how it compresses. A few months back I ripped the water bladder reivoir

Max W.

Originally posted at

2021-05-12T20:00:00

I have the 40-60 as well as the 60-75 and I've been very impressed. When I originally bought the 60-75, I was immediately impressed with the build quality, comfort, and weight. After a few times out, I decided the 60-75 would be great for a week long adventure, but I tend to pack pretty light didn't quite need as much room. When I picked up the 40-60, it did not disappoint. With all the things I love about the 60-75 but just a bit more compact, it has quickly become my go-to backpacking ruck.

Nicholas L.

Originally posted at

2021-05-05T20:00:00

I used this pack for 5 days in Southern Utah and it stood up like a champ. It was comfy around my waist & it had plenty of room for my food and gear. I'm 5' 7" 150 lbs and the S/M fit perfect. If I would have one gripe with this pack it would be the wide pockets. They can be a little too loose depending on the gear you fit in there. But I am being picky.

Joseph P.

Originally posted at

2021-03-24T20:00:00

My favorite thing about the backpack is how comfortable the hip belt is. I just completed a 25 mile hike and my hips back or shoulders never got sore. I love this pack. If I had to change anything...perhaps some outer storage pockets would be helpful and the large zipper on the top kept getting stuck by the large piece of fabric that folds over the zipper. There was one time where I wasn't sure if the zipper would be unstuck as the fabric was completely inside of the zipper but I was able to get it to release. Just be careful when zipping up the top. Other than that it performed very well and I'd definitely recommend it to anyone!

Cameron H.

Originally posted at

2021-03-20T20:00:00

Very conferrable. Carries more weight than it should for its weight. nice sized hip belt pockets. Extremely well priced.

JOHN J.

Originally posted at

2021-03-02T19:00:00

Hello, A French website says that it is easy to disassemble the "Y Flex DAC" frame. This is the reason why I bought this bag, but I can't find how to do it. Thanks for explaining to me. Jean Louis

Jean-Louis

Originally posted at

2021-01-28T19:00:00

I spent months researching packs online and going to outfitters to test how they fit. I'm a huge Back to the Future fan, so the Flex Capacitor caught my attention. Turns out it has all the features I want in a pack and is still cheaper/lighter than the others I was considering...but I was unable to try this on before purchasing. Because no other packs checked off all the boxes on my checklist, I took a chance. My Pros: - Hip belt pockets are slightly larger than on other packs and fit my iPhone 8 in an Otter Box case perfectly. - S/M actually fits my 28' hip just fine with a couple extra inches of tightening space. (Perhaps my pants + belt give me the couple extra inches I need to fit the posted measurement?) - Brain is non-removable and isn't unnecessarily bulky. - Water bladder sleeve is removable. - Shoulder strap pocket with cinch cord perfect for a water bottle, snacks, phone, etc. - 1 simple top-loading access point. My Cons: - While the lower-back and scapula pads are very comfortable...they are not very breathable...so those are the exact spots that get sweaty. - With a heavy (>30 lbs) load...it puts pressure on my right clavicle leaving it sore. I can mitigate the pain by shifting the shoulder strap just very slightly any time I feel it hurting. No pain on the left clavicle at all. Not sure why.

Ken S.

Originally posted at

2020-12-27T19:00:00

So far its an awesome pack very comfortable and light weight. I have only taken it out when its cold out. I do have a small concern with how my back will breathe during the summer there is no airflow between my back and the pack. I was worried about the shoulder pockets if my smart water bottle would fit there and if it was going to bother me. The bottle fit and it was no bother. I really like the tightening straps for the waist belt it is awesome.

Rene F.

Originally posted at

2020-11-25T19:00:00

Almost the perfect pack. The side mesh pockets for water bottles needs to be a little deeper. The high tension spots need a little more fabric because they are super stressed out and I see durability issues. Otherwise I love it. Fits perfect, love the compression straps and versatility. Right now I?m waiting to hear back from SD for repairs on those seams that have stretched and torn after 12 miles. Definitely need to tread light on this pack, it?s the trade off for its weight.

Terry B.

Originally posted at

2020-11-17T19:00:00

Price, Weight, Function.. Great items.

Namhee K.

Originally posted at