100% Polyester. Fabric: Ripstop. Fabric Technology: Brite Lite Torch Technology, Durable, Hardwearing. Design: Logo, Textured. Adjustable, Air Mesh Back, Attachment Loop, Detachable Rain Cover, Ergonomic Shoulder Strap, Grab Handle, Key Clip, Mesh Panel for Ventilation, Padded Hip Belt, Zip Pullers. Pockets: 1 Internal Pocket, Hydration Storage, 2 Mesh Pockets, 2 Internal Organizer Pockets, Raised Laptop Pocket. Capacity: 20L. 50 x 30 x 8 cm Ref: UTRG7673