WOW World of Watersports Zig Zag 1 or 2 Person Inflatable Towable Steerable Tube for Boating, 12-1050

Steer across the wake, turn on a dime, jump the wake and do barrel rolls while the boat goes straight
The wings act as a rudder that drives into the water to steer
Lay, sit, kneel, stand and do barrel rolls, no fragile fins or fancy tow points necessary