The U-shape allows it to effortlessly cross wakes. The rocking motion adds a lot of excitement! The sides comfortably accommodate 2 riders lying down or 4 riders kneeling. Add 2 more riders on the centre “hump” and you’ve got a super fun 6 rider towable! Oversized neoprene pads are strategically placed to protect knees and elbows. Fourteen nylon handles with neoprene knuckle guards ensure a great grip for all riders. Durable double-stitched 840 denier nylon cover and rugged 30 gauge K80 PVC inner bladder. The Boston valve makes easy inflating and deflating.