The Session was built with stability and ease in mind. With more surface area than we've ever created, getting out of the water is a breeze and once you're up, you'll feel like you're floating with the level spine and grip rails reducing drag. Our All-Terrain construction makes crossing wakes and rougher water simple and smooth. Like all Radar Skis the Session is built with 100% carbon laminates.Our Open Water series allows skis with more volume to ski at a high level with superior balance and support. It's undeniable that surface area is your friend in skiing, it pops you out of the water with ease and it gives you the ability to float on top of the water. That surface area matched with our flat spine and the next evolution of Grip Rails has resulted in a ski that's even easier to ride and has less drag. The Sessions and Terrain will change the way you view a sheet of glass, go rip it up!. All-Terrain Core - Most forgiving construction.. 100% Carbon Fiber - Consistent flex every time.. Grip Rails 2.0 - Allowing your ski to engage with ease.. Terrain: Open Water. Speed Range: 20-30 mph / 34-49 kph