100% Polyester. Height: 72cm. Width: 35cm. Length: 23cm. Capacity: 65L. Pockets: Internal Mesh Pocket, Zip, 2 Mesh Pockets, 2 Front Pockets. Compartments: 1 Main Compartment. Adjustable Chest Strap, Adjustable Hip Straps, Air Mesh Back, Padded, Padded Adjustable Shoulder Straps. Fabric Technology: Breathable, Soft. Fastening: Flap, Toggle. Ref: UTMW4407