Without wakeboard bindings you're not wakeboarding. Wakeboard bindings attache to the top of your wakeboard which secure your feet to make those 540s possible. There are two major types of bindings; open toe and close toe. Open toe bindings are perfect to put on a board that will be used by a number of people because each size covers a range in shoe sizes. Close toe bindings perform better and fit more like a shoe, meaning they won't fit nearly as many people.