The Titan 16 Can Zipperlessâ„¢ Cooler still has ice after 2 days! DeepFreezeâ„¢ high performance insulation with radiant heat barrier and a triple layer Cold Blockâ„¢ base combine to create superior cooling. There is a â€œflip-openâ€, patented Zipperlessâ„¢ lid that provides quick access to food and drinks and an insulated front pocket. The Rhino-Techâ„¢ exterior is tough, water resistant and wipes clean easily. ** The interior features a durable HardBodyÂ® liner with SmartShelfâ„¢. The SmartShelfâ„¢ allows you to keep hard stuff like drinks separate from soft stuff, so sandwiches and other soft foods donâ€™t get crushed. If you want to use the entire liner, the SmartShelfâ„¢ easily removes to provide one large compartment. Designed for convenience and usability, this cooler also features an adjustable BacksaverÂ® shoulder strap with shoulder pad that centers load weight to reduce muscle stress.