The Gregory Swift 15 Hydration Pack comes with a 3D hydro reservoir for on-the-go hydration and a mesh encapsulated ventilated back panel design that keeps you cool and dry on the trail. 100% Nylon. Zipper Closure. Top panel access. Hip belt. Shoulder harness. Hydration compatible: Hydro reservoir included. Front and side mesh pockets. Volume: 15 L. Imported. 190207022926 33788200009 111490