Camelbak Scout 50 oz Hydration Pack Pack weight only 16 Ounce Discovery pocket, sternum strap whistle, side pockets Designed to carry extra layers, food, trail maps, sunglasses, sticks and bugs Large main pocket for layers; organizer pocket for trail map, sunglasses, and other small items Carries extra layers, food, trail maps, sunglasses; Got Your Bak Lifetime Guarantee