SBR 63%, Nylon 32%, Spandex 5%.Flexible Stabilizers --- Perfect Holding to Relieves Pressure and Reduces Stress. We have developed and incorporate springs in 2 sides with 1 silicone pad at kneecap position. It is indeed carefully designed to reduce the stress focus on the knee-joint during heavy work and intense exercise. Beneficially effective to relieve acute and chronic knee pain from ACL, LCL, MCL, Meniscus Tear, Strains, Sprains, Arthritis, Tendonitis Pain and other injuries.Velcro Designed Strap --- knee patella support strap. It has a Velcro design strap that can be wrap around to any exterior part of the Knee Brace to firmly put it in place with the 2 Velcro straps that allows you to adjust the tightness in your own choosing and feel the support thats best for you, thus making it more stable than the other same product in the market.Patella Gel Pads --- Essential to help bend the knee with less stress and the patella gel pads to bring more comfortable movements in kneecaps even it protected with the other components of the product. Even with previous injuries or just went knee surgery, while wearing this, its as though you dont have it at all as it provides compression ease, comfort and healing from the said injuries. That being said, it is highly recommended for post-surgery recovery or preventing injuries from sports.Absorbent and Breathable --- We only use the high-grade of Neoprene material as it was originally designed to be a skin-to-skin contact for quality results, we take into consideration on preventing any unpleasant skin condition. And so, we come up with a breathable material that has an inner sweat absorption feature providing physical ease and support while using.