2017, 2018, and 2019 Budget Pick - Backpackers.com

10 Best Lightweight Backpacks of 2018 - CleverHiker

Best Ultralight Backpacks of 2018 - GearJunkie

One of The Best Summer Packs of 2017 - Outside Online



The Flex Capacitor features a unique patent pending gusset system that allows the pack to quickly and easily expand from 40-60 liters with the adjustment of a few straps. Instead of expanding up like other packs, the circumference of flex expands to provide a more stable and comfortable load carry.

Tech Specs and Sizing

PACK SPECS S/M M/L TORSO SIZE 16" - 19" 18" - 21" VOLUME (Liters) 39 - 56L 42 - 60L VOLUME (Cubic Inches) 2400 - 3400 2550 - 3650 WEIGHT 2 lbs. 9.2 oz. (With S/M hip belt) 2 lbs. 11.2 oz. (With M/L hip belt) DIMENSIONS (LxWxD) 28.5" x 13 "x 10" 30" x 13" x 10" MAX COMFORT WEIGHT 35-50 lbs. 35-50 lbs.

HIP BELT SPECS XS/SM SM/MD MD/LG LG/XL WEIGHT (Ounces) 10.2 11 11.5 12.2 WEIGHT (Grams) 290 310 330 350 HIP BELT FIT RANGE* (Inches) < 29 29 - 32 32 - 35 > 35 HIP BELT FIT RANGE* (Centimeters) 74 74 - 81 81 - 89 89

*This is a hip measurement, not a waist measurement. Please watch pack fit video to learn how to properly measure.