Engineered for maximum compression and stabilization, the compressor from HumanX by Harbinger is a competition-grade performance knee sleeve. The compressors multi-layer compression system is comprised of strategically placed panels that target specific areas around the knee joint. Each panel uses harbingers patent-pending tri-layer compression material. The result is advanced compression where you need it most! highly breathable and ultra-thin, the compressor is fitted to quads, knee and upper calf, for proper position, stabilization and tracking. A super Flex vent panel curves around back of knee, reducing bulk and increasing comfort when knee is bent, and the back support panels help hold proper position. Technologically advanced materials manage moisture with breathability, keeping knees warm and Promoting circulation. Hand wash cold/air dry. Bonus: the compressor is reversible, increasing your training options -- you can workout for time or paint your body with bar. Your choice every workout.