Horizn Studios recycled coated-cotton canvas and recycled polyester-blend backpack80% canvas, 20% polyesterFold-over closureWater-resistant design, embroidered patch at front, one main compartment, concealed zip pocket at interior, 23-30 litre expandable volume, waxed finish, padded 15in laptop compartment, two shoulder straps at back, fully linedHeight 47cm, width 30cm, depth 15cm; expanded height 64cm, width 30cm, depth 15cmVolume 22LWipe with a clean, dry cloth