Camelbak Adult ThermoBak Mil Spec Antidote Hydration Backpack, Camo, One size 100% Nylon Made in US Hydration Capacity: 70 oz / 2 L Total Capacity: 122 cu in / 2 L Total Weight: 1.2 lbs / 544 g Dimensions: 18 x 8.5 x 3 in / 46 x 21.5 x 8 cm Torso Length: 17 in / 43.2 cm