420D diamond weave ripstop polyester with PVC backing and 600D polyester with latex rubber backing. Huge zippered insulated main cooler compartment with protective baseboard. Heat sealed leak-proof PEVA Lining. Pull tab and Velcro lid opening allows quick access to main compartment. Front zippered pocket with built-in speakers and amplifier with MP3 player compatibility Connects to your mobile music device (3 x AA batteries required not included). Top lid slip in pocket with Velcro closure. Two reinforced moulded rubber side carry handles. Detachableadjustable padded shoulder strap. Heavy duty zippers and accessories. Rubber feet for added protection. Capacity: 31 Litres. Dimensions: 40cm W x 31cm H x 25cm D. Colours: blackcharcoal.