Concave tunnel for easy edge changes
Smooth transitions from side to side
The O'Brien Siege is a streamlined ski that's designed to deliver speed and stability. This is the same shape found on the popular O'Brien Sixam 2.0. With a tunnel concave, edge changes are effortless and the ski turns on a dime. A softer flex and increased rocker make the Siege feel stable right out of the box. Small defined bevels mean faster, easier turns. ARC fin. Pro Wing foil not included.