Four-layer construction in LLDPE, PU, rubber, silicone, stainless steel, ABS and PVC forms a 20 quart hard cooler that holds ice for up to 6 days, keeping food and drinks cold on extended trips. The 21.5 x 14 x 15 in exterior and 16 x 8.5 x 10 in interior balance storage with a compact footprint for boats, tailgates or campsites. A built-in ruler in the lid gives anglers a convenient way to measure their catch without extra tools. An integrated bottle opener on the body lets you open beverages quickly at the campsite or on the boat. A sturdy handle and dual latches make it easier to carry the cooler securely over uneven ground. Anti-slip foot pads help the cooler stay in place on wet decks or truck beds. The lid supports up to 440 lbs, providing an extra seating option when space is limited.