About Madshus Ultrasonic Ski: And the final ski in this section is called the Ultrasonic. This is a flat ski as opposed to a 3D structure ski that we have been looking at and this is a beautiful ski for high school skiers, team skiers or price might skiers that want to get into the sport. Comes in a classic version and comes in a skate version, so this is the Ultrasonic.
