The Kids' CamelBak Mini M.U.L.E. 50oz Hydration Pack with Crux 1.5L Reservoir is a mountain biking pack for kids looking to adventure big. This bag is even willing to explore beyond the bike, on hikes, travel days, and trips to the zoo. The recycled 200D poly fabric is durable, sustainable, and coated with a durable water repellent finish to deter light rain. The Crux 1.5L Reservoir keeps thirst at bay, and the 3.5L of gear space makes it easy to carry snacks, a house key, or even an extra layer.