Four-layer insulation using a food grade PP liner and PU foam helps this 53 quart rolling cooler keep contents cold for up to 151 hours or warm for 32 hours, so drinks and meals stay usable on long outings. The 29.5 x 16 x 16 in exterior and 25 x 11.5 x 12 in inner space hold up to 87 cans while supporting a 220 lbs load. Large wheels, easy-grip handles, and a flip-up window simplify transport and access. A 25-in fish ruler, cup holders, bottle opener, phone holder, drain hole, secure latch, and non-slip feet add outdoor convenience.