MaxCold Ultra insulation: 20mm HDPE foam keeps food & drinks colder for extended periods of time Durable, welded exterior features a 600D coated polyester material that provides overall dirt-, sand- & water-resistant protection for long-lasting use Super spacious zippered main compartment opens wide for effortless packing Easy-open lid with webbing pull-tab lets you quickly access contents in main compartment Put the size into perspective: Holds 30 cans