Used once! This Camelbak hydration pack is small but spacious with 17.5 liter capacity for any outdoor adventure! The pack accommodates a helmet, has a waist belt, and a fleece lined pocket for goggles or sunglasses. It fits a 100 oz (3L) bladder/reservoir (not included). The bag weighs just under 1lb. Torso length is 14". Gear review: https://www.feedthehabit.com/mountain-biking/camelbak-the-capo-hydration-pack-review/