The Bass Pro Shops Eclipse Hydration Pack in green is a small 1.5L backpack designed for cycling and hiking activities. Made of durable nylon material, this hydration pack features a single divider, Velcro closure, and one pocket. The adjustable size and nylon handle/strap make it comfortable and convenient for unisex adults to use. Perfect for outdoor adventures, this hydration pack is a practical and reliable choice for staying hydrated on the go.