The Float-Eh 18' x 6' x 1.65" water mat is the largest mat in our collection, so it is best used with your lake squad. The mat consists of 3 layers of foam equaling 1.65 inches of thickness (30% thicker than the average water mat), allowing for maximum buoyancy. The mat can hold approximately 1600 lbs of dispersed weight so it can comfortable fit the whole clan (6-8 adults) for team tanning or napping sessions. The perfect solution if you are short on dock space or if you lose the sun. We're pretty sure you'll be hanging out on your floating mat until the sun goes down.