Compact&44; sleek rear rack mounting bag for commuting&44; errands & touring. Perfect bag for road & fitness bikes. Side pockets open to form mini panniers. Large main compartments with two side pockets/pannier bags&44; & a multi-function top pocket Foam walls provide padding & insulation for use as a cooler or camera bag Insulated main compartment holds up to six 16oz cans 600 Denier plus h/d 840 Denier material 3m reflective strip for safety Built in carrying handle & shoulder strap Quick clip mount for QR Beam Rack RXSize 11&34; x 4.3&34; x 5.5&34; Capacity 550 cubic inches 740g