Meet the versatile pack that hauls it all. The Flex Capacitor 40-60 is a beast of a backpack, constructed from durable nylon for rough conditions in the backwoods or backcountry and built with adjustability in mind. Loosen the expanding horizontal gussets for an additional 15-20 L 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 backpack can hit well above its weight class.FEATURES:- Expandable Volume 2 stretch mesh side pockets 2 stretch mesh hydration pockets on shoulders Zippered hip belt pockets U-shaped top acces zipper Small stash pocket in lid Ultralight weight Lightweight &';Y&'; Flex DAC suspension TECH SPECS:-S/M Torso Capacity: 39-56L / 2380-2440 in3 Weight with S/M waist belt: 2 lbs 9 oz / 1.16 kg Weight with M/L waist belt: 2 lbs 10 oz / 1.19 kg Torso Fit: 16" - 19" / 40.6 - 48.3 cm Hip Fit with S/M waist belt: 26" - 38" / 66 - 97 cm Hip Fit with M/L waist belt: 33" - 48" / 84 - 122 cm Dimensions (H x W x D): 27.5" x 11" x 10" / 70 x 28 x 25.4 cm Suspension: Y Flex DAC SKU: 80710220 M/L Torso Capacity: 42-60L / 2563-3661 in3 Weight with S/M waist belt: 2 lbs 9 oz / 1.16 kg Weight with M/L waist belt: 2 lbs 10 oz / 1.19 kg Torso Fit: 18" - 21" / 45.7 - 53.3 cm Hip Fit with S/M waist belt: 26" - 38" / 66 - 97 cm Hip Fit with M/L waist belt: 33" - 48" / 84 - 122 cm Dimensions (H x W x D): 27.5" x 11" x 10" / 70 x 28 x 25.4 cm Suspension: Y Flex DAC SKU: 80710220