K2 Mindbender 85 Men’s All-Mountain Skis. The Mindbender 85 is an ideal ski for anyone breaking out beyond the groomers. They are lightweight, forgiving, and intuitive – inspiring confidence in beginner-to-intermediate skiers looking to bring their improving skills to new parts of the mountain. Some skis are easy to outgrow for a developing skier, but these Mindbender 85’s will remain in your arsenal even after you gain confidence in tougher terrain. SlantWall: Adding a 30° angle to the sidewall in K2’s Hybritech construction, SlantWall increases a ski’s agility and responsiveness while maintaining accuracy and power. All-Terrain Rocker: Gradual rise in the tip with a short, low section in the tail for greater versatility in all conditions. Aspen Veneer: Lightweight and resilient, aspen is a great all-around core material. Range : 170 to 179. Waist Width (mm) : 85. Tip Width (mm) : 128. Tail Width (mm) : 116. Tail Type : Partial Twin.