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|Detachable/adjustable padded shoulder strap|Heavy duty zippers and accessories|Rubber feet for added protection|Capacity: 31 Litres