100% Polyester. Height: 46cm. Width: 30cm. Depth: 20cm. Capacity: 20L. Pockets: 2 Side Pockets, Mesh Pocket, Top Pocket, 1 Front Pocket, Zip. Compartments: 1 Main Compartment, Zipped. Adjustable Chest Strap, Adjustable Waist Belt, Back Panel, Carry Handle, Compression Straps, H2O System, Padded Adjustable Shoulder Straps, Raincover, Safety Whistle. Fabric Technology: Air Cooled. Fastening: Buckle Strap. Design: Logo, Micro Checked, Reflective. Ref: UTIG3867