Mission REEF 85 Inflatable Water Mat Essentials Kit Spend all day having fun out on the water with Missions REEF Inflatable Water Mat. Unlike floppy floating foam mats, the REEF has a rigid construction that wont bend, flip, or submerge. The REEF is the sturdiest inflatable mat on the market. At four inches thick, you can stand, jump, climb, and play around on it all day long without worrying that its going to sink or deflate. This REEF is made with 1000D nylon, the same material used in highly