Shad SW45 Series 40L Waterproof Rear Backpack40 liter rear bag with capacity for two full face helmets, it is easily and quickly attached to the motorcycle using high quality Trimmer aircraft grade aluminum hooks. It can be converted into a comfortable backpack with an ergonomic backrest, and its shoulder handles can be hidden for a better adaptation to the motorcycle. It has two easy access external pockets and an external storage flap, which can hold up to a full face helmet. Features