Fabric: Durable 600D Oxford Weave 100% Polyester. Compartments: Main compartment and side zipped little pocket. Straps: Removable shoulder strap with key compartment and side pocket for water. Ergonomic Details: Eyelets on main compartment and side pocket for water evacuation. Dimensions: 38 x 36 x 23 cm [15 x 14.2 x 9 in]. Screen print. Volume: 31L.