Radar's Open Water series is designed with extra surface area to provide better balance, stability, and support while skiing. The increased surface area helps the ski rise out of the water easily and stay on top with less drag. A flat spine and updated Grip Rails work together to create a smooth, responsive ride that's easy to control, making the Sessions a great options for enjoying open water.Enjoy mobility and support with the Radar Prime water ski boot, offering comfort and performance at a budget-friendly price.The Radar Prime boot was designed with simplicity in mind. A bungee on the upper allows for mobility while the lace on the lower provides support. It offers great performance and comfort all while being price conscious.