Moonwind 40L Waterproof Outdoor Sport Duffel Shoulder Bag Travel Camping Hiking Backpack Men Trekking Mountaineering Rucksack Large with Code Lock Oxford material, rainproof, anti-tearing, wear-resisting, breathable 40L large capacity and perfect storage system of large main pocket(for clothing, books, laptop and other personal belongings), top zip pocket(for frequently used items), front multilayer pocket design(can hold your tablet), front lower pocket(for frequently used items), small waist pocket(for phone, camera and other small items), side mesh pocket(for bottle,umbrella) It can act 3 different style, as a shoulder bag , handbag, backpack; Comfort thick straps, ergonomic design; with chest strap to fixing shoulder straps and preventing slipping 3D stereoscopic breathability back design, air convection and heat ventilation; Most comfortable S shape shoulder straps of 3 layers(1.Perspiration breathable mesh fabric;2.High-density foam, stable to bear the weight function;3. Soft decompression seismic foam) Size:(L*W*H) 32*20*55cm/12.60*7.87*21.65 inch,please mind the size before ordering