FitleticA(R) Reservoir 2 liter :: Finally. A backpack and hydration belt combined, to take you on your toughest journeys. With an ergonomic design, rugged yet lightweight construction, and a smart combination of water holsters and compartments, this is the only backpack you'll need for hiking, biking, or long days at school. Large enough to hold a laptop with pouches for your ID, keys, and essentials. The Journey starts now!