SKU: 79894273372

Sierra Designs 40-60L Flex Capacitor Rucksack

Sale price$169.16 Regular price$187.95
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Ships within 48 hours · Estimated delivery Aug 18 - Aug 23

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Description

Sierra Designs 40-60L Flex Capacitor RucksackABOUT THE Flex Capacitor 40 60 Expand your gear, extend your adventures The lightweight backpack of your dreams is here. Meet the versatile pack that hauls it all. The Flex Capacitors is a beast of backpacking pack, constructed from durable nylon for rough conditions in the backwoods and built with adjustability in mind. Loosen the expanding horizontal gussets for an additional 15 20L of cargo capacity on longer backpacking trips, or cinch it tight

ABOUT THE Flex Capacitor 40-60

Expand your gear, extend your adventures

The lightweight backpack of your dreams is here. Meet the versatile pack that hauls it all. The Flex Capacitors is a beast of backpacking pack, constructed from durable nylon for rough conditions in the backwoods and built with adjustability in mind. Loosen the expanding horizontal gussets for an additional 15-20L of cargo capacity on longer backpacking trips, or cinch it tight for smaller, compact loads on fast summit days. Plus, ample quick-stash solutions on the straps, sides and bucket lid ensure there are plenty of places to store your mid- trail essentials. However, you pack it, the Y-Flex suspension adds support so this lightweight backpacking backpack can hit well above its weight class.

Flex Capacitor Rain Cover sold separately.

FEATURES

  • Lightweight Y-Flex Suspension provides superior increased support.
  • 20L adjustable volume to tailor both to extended backpacking trips or shorter day trips.
  • Hydration sleeve doubles as removable summit sack.
  • Dual adjusting shoulder straps tailors pack fit to your torso.
  • 2 hydration pockets on shoulder straps.
  • 2 stretch mesh side pockets to keep essentials close at hand .
  • Zippered hip belt pockets for easy storage.
  • U-shaped top access zipper for easy access while backpacking.
  • Lightweight backpack.

MATERIALS

  • 100D Nylon Honeycomb/420D Oxford

TECH SPEC

S/M Torso
  • Capacity: 40-60L
  • Weight: 1.23 kg
  • Torso Fit: 41 - 48 cm
  • Hip Fit with S/M waist belt: 71-117 CM
  • Dimensions (H x W x D): 63 x 20 x 32 cm
  • Suspension: Lightweight Y-Flex

M/L Torso

  • Capacity: 40-60L
  • Weight: 1.4 kg
  • Torso Fit: 46 - 53 cm
  • Hip Fit with M/L waist belt: 84-127
  • Dimensions (H x W x D): 70 x 22 x 32 cm
  • Suspension: Lightweight Y-Flex
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 79894273372

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Mr. Young
Lowell, US
★★★★★ 4
Beats Name Brands Jeans 👖
Size: 14, Color: Washed Blue
These pants are good for $12.78 you can’t beat that only thing is the legs are a bit too long. Good quality jeans beats name Brand jeans that’s why I gave 4 stars not five stars she will grow in to them.
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Reviewed in the United States on June 11, 2026
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Veronica
Alexandria, US
★★★★★ 5
Happy customer
Size: 14 Slim, Color: Washed Blue
My girl absolutely loves the jeans!!!! I sized up for her just incase and I’m glad I did because they fit her perfectly!!!!!!!! I sized up for her height! Perfect length!!!! Great quality!!!! Great price!!!! Jeans look just like they are pictured online!
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Reviewed in the United States on December 19, 2025
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Felicia
Pawtucket, US
★★★★★ 5
Cute jeans
Size: 12, Color: Washed Blue, Size: 12, Color: Washed Blue
Bought these jeans for my daughter and they fit great! The material is thick, which is nice even in warm weather. They look just like the photo and have a great length to them. Very comfortable and stretchy . She loves them!
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Reviewed in the United States on October 16, 2025
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Teri PD
Chelsea, US
★★★★★ 5
FANTASTIC FIT
Size: 16 Plus, Color: Washed Blue
I'm a 4'7" , 65 year old woman. Due to abdominal issues I needed jeans that give that extra something on the waist. I've tried on just about every brand of jeans ranging in size from adult/junior 6 to 12. If they fit on the legs the waist was huge. If they fit on the waist the legs and butt had enough room for me and a friend. I was resigned to wearing yoga pants and leggings with big shirts. My son mentioned that he loved the Amazon basics men's dress slacks, so I figured why not. First I looked at women's and juniors, and I knew from the measurements that I was still stuck. Then I remembered that about 15 years ago I'd buy girls pants (I was a size 12 in kids at the time) Looking at the sizes I knew a 12 was way too small, then I saw the 16 plus. With hesitation I bought them. Well glory be miss Agnes, THEY FIT. Comfortable, real jeans again. Sure, I have to take them up about 6 inches, but that's fine, not a problem. I'm just so happy to have real jeans again !!!
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Reviewed in the United States on November 30, 2023
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Tamm
Massapequa, US
★★★★★ 5
Love them!
Size: 7 Slim, Color: Washed Blue
I did but expect these jeans to fit so well and look so nice on my daughter. Hands down the best jeans I’ve purchased for her, much better fit and quality than the other stores! The length is perfect, but it’s a little snug in the waist. Still a great fit with some stretchiness! Great value!
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Reviewed in the United States on July 25, 2025

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