FABRIC 100%Nylon waterproof with PVC coating oxford, 500D. SIZE 29cm (W) x 41.5 (H) x 16cm (D) mm, 19 litres capacity Unit weight: 1.1kg STYLE Back pack has strong hard padded carry handle. Suitable for decoration with badging, embroidery and heat transfer. Main compartment: secure padded laptop section – multi pocket section to accommodate mobile and hard copy docs. – Internal connecting computer charge cables to external bag charge connector. External face has three compartments with concealed zips. One luggage strap has internal zip pocket. Lower back zip compartment with smart sleeve feature that allows attachment over extendable luggage handles.