Large capacity main compartment with two side pocketspanniers bags and a multi funciton top pocket insluated main compartment 420 denier nylon elastic top bungees extra think rigid foam sides top and bottom safety light clip 3m reflective strip for safety built in carrying handle plus detachable shoulder strap exp 36 x 24 x 20cm 166 litres 1010ci 1050g ex 36 x 18 x 20cm 66 litres 400ci 745g perfect rear rack mounted storage bag for commuting errands and touring two side pocke