This CamelBak Mini M.U.L.E. Hydration Pack is perfect for any outdoor activity, especially hiking and running. The backpack features a 1.5L capacity and multiple pockets for storage. The backpack is made of synthetic, polyester, nylon, plastic and rigid plastic materials. The backpack has a zip closure and comes in a light pink and purple color. The backpack is versatile and can be used for multiple sports and activities. The backpack does not come with a bladder.