AIRHEAD OUTRIGGER Towable Ski Tube
http://www.go2marine.com/category.do?...
The concave bottom on Outrigger makes for one wild ride! Its one of the liveliest towables of all time because of the air pocket underneath. Two oversized topside neoprene panels protect elbows and knees. The 2 inflated fins on the perimeter really help riders stay on top.