Rear rack mounting bag with large expanding main compartment and fold out side panniers for commuting errands and touringfeatures large capacity main compartment withtwo side panniers and a multi function top pocket foam walls provide padding and insulation for use as a cooler or camera bag 600840 denier material with dupontteflon coating 3m reflective strip built in carrying handle and shoulder strap safety light clip quicktrack mount for beam rack rx 28x15x18 23cm capacity700ci