Hydration pack compatible with two water bottle pockets for easy access to water, the Columbia® Echo Mountain 25L Backpack will become your favorite travel companion. The adjustable shoulder straps and multiple grab handles ensure comfortable carrying. This versatile backpack is made from polyester material with Omni-Shield advanced repellency and features daisy chain loops for gear attachment. It is also designed with an adjustable sternum strap for support with a rescue whistle on the buckle. The large main compartment is for bigger essentials while the front pocket with a hook-and-loop closure helps secure your valuables.External zippered pocket.Polyester lining.Imported.Measurements: Bottom Width: 10 3⁄13 in Depth: 6 7⁄10 in Height: 18 1⁄2 in SKU 9986812