Sierra Designs Flex Trail 40-60 Backpacking Pack


Explore like a pro no matter your experience level. The Flex Trail ultralight backpack gives you the ability to tailor the pack size to your adventure needs by taking advantage of the horizontal gussets.

Cinch it down to a 40L cargo pack capacity for your shorter trips. Expand it out to 60L for your longer backpacking adventures. Continue to customise your backpack with the hardware-based adjustable torso. Keep your essentials close at hand with oversized mesh pockets and zippered hip pockets. The aluminium perimeter frame suspension keeps this backpacking pack lightweight while the support stays strong.

  • Features

    Expandable volume to adjust to both short and longer backpacking adventures
    Lightweight aluminium perimeter frame for increased stability
    Customisable fit with a hardware based adjustable torso
    Large front stretch mesh Shove-It pocket to easily store jackets and other day essentials
    Zippered hip belt pockets and 2 stretch mesh side pockets for storing water bottles and items you need to keep on hand
    U-shaped access to top zipper and zip stash pocket in lid to store items for easy access
    Ultralight backpacking backpack

  • Specifications

    150D Polyester Ripstop / 420D Polyester

    Capacity: 39-56L
    Weight: 1.23 kg
    Optimal Carry Weight: 7-20 kg
    Torso Fit: 15.5" - 21" / 39 - 53 cm
    Waist Belt Size: 31" - 54" / 31 - 54 cm
    Dimensions (H x W x D): 27.5" x 10.5" x 14" / 70 x 27 x 35 cm
    No. of Hip Belt Pockets: 2
    No. of Exterior Pockets: 5