Compact sleek rear rack mounting bag for commuting errands and touring perfect bag for road and hybrid bikes compact large capacity main compartment with two side pockets and a multi function top pocket aerodynamic rigid foam walls 600 denier with dupont teflon coating safety light clip elastic top bungees 3m reflective strip built in carrying handle and shoulder strap 31x19x15cm quicktrack mount for beam rack rx capacity 281 litre170ci weight 570g