The only base layer with adjustable medical-grade knee support that's designed to help you overcome injuries, minimize pain, and get back to activity. Engineered with 90 feet of high-strength cables, adjustment dials and targeted compression, the K1 Summit reinforces the knees, hips, and lower back to keep you active for as long as possible.
Trusted by 30,000+ customers, the K1 Summit offers thermal fabric and is best for skiing, snowboarding or cold weather activity. It's lightweight, machine washable and easily wearable under ski and snowboard pants.