1. With high-elastic tight and breathable compression fabric to perfectly fit your kneecap curve, specially designed 2 extra straps for best fit. It will strengthen side support and maintains joint stability, effectively disperses pressure, keeping your knee warm, lubricating your joints. BEST CHOICE for sports protection and pain recovery. 2. Non-slip silicone strips and high-elastic compression fabric to avoid sliding and rolling during exercise, It will stay position all day. Innovative functional fabrics has the effect of keep your knee warm and reduce stiffness, reducing inflammation and swelling, increase oxygen flow. 3. well balance between compression and comfort. It will disperse the pressure and improves circulation around your knee area . prevent muscle strain. Relieve , prevent ligament injury, dislocation and so on. It is Perfect for Pain Recovery or Workout. 4. COMFORTABLE EXPERIENCE The air knit fabric can instantly absorb and evaporate large amounts of water, circular breathing. breathable, fast-dry and absorbing sweat, lightweight. As thin and light as a feather, you can wear it under the leggings or pants, you don't even feel it