Laptop backpack daypack suitable for unisex colour grey capacity 22 litres maximum volume 22 weight 073 kg height 47 cm width 305 cm depth 17 cm max laptop size 156 inch features back ventilation system padded back reflective elements chest strap internal pockets laptop pocket outside pockets side pocket straps padded shoulder strap bag features waterproof base water resistant material fastener zip carry handle top wheels none