Camelbak Men's Fourteener 20 100 oz Hydration Pack,Green,One Size Antidote Reservoir features easy open/close cap and low-profile design Hike essentials organizer pocket and quick stash overflow pocket Four point compression straps and tool attachment Designed to Carry: Extra layers, food, head lamp, trail maps, trekking poles, ice axe, media, sunglasses CamelBak Got Your Bak Lifetime Guarantee