1.Outer material: 600D polyester,Fill material: high-density foam, fully insulates all sides,Lining: waterproof PVC 2.Self-locking, 3-section retractable rectangular handle system 3.In-line skate wheels, padded wheel cover system 4.Padded backpack straps stored behind fabric panel which folds down to cover wheels 5.Cooler bottom is enforced with thick tray for better balance 6.Insulated top section for dry goods 7.Thermally insulated main compartment with PVC lining for easy clean-up 8.Spacious front pocket for accessories 9.Double mesh pockets with elastic loops for additional storage 10.Loading capacity: 42 soft drinks plus ice 11.Keeps cool for at least 8 hours 12.Both sections are top-loading, large opening for convenient packing 13.Foldable/non-foldable bottom available 14.Reinforced padded handle on top section for easy carrying