PROTECT FROM IMPACT: The polymer cells harden to absorb blunt force impact and vibrations when activated SOFT AT REST: Malleable, soft, and super stealth UNIVERSAL FIT: 6.25 in. wide and 9.375 in. tall, these fit many different knee pockets in pants and elbow protection pockets in jackets TRUSTED BY PROFESSIONALS: This polymer technology is trusted by top performing athletes and military personnel MADE IN THE USA: Developed and produced in Katy, Texas INCREDIBLY SLIM: 1/4 inch thick (7.2 mm) LIGHTWEIGHT: 2.2 oz each makes them feel like nothing NO MATCH FOR HEAT OR FORCE: Absorbs all heat transfer that burns skin and reduces back face deformation FABRIC COATING: Covered in durable Dri-Lex fabric Our exclusive slim and lightweight PolyShield universal joint protection— made in the USA and powered by Zoombang polymer technology! This armor hardens to absorb impact and vibrations when activated. At rest, it's soft and malleable, melds to your body and remaining super stealth. It even absorbs all heat transfer that burns skin. Covered in moisture-wicking fabric, this anti-fatigue and protective knee pad is reusable for ultimate convenience and comfort. It's able to absorb 90% of blunt force and reduces back face deformation. While it's contoured for a perfect fit around knees and elbows, you can slide this armor into any joint pocket on a protective garment/PPE/work pants that it fits (knees, hips, elbows, shoulder). Use this for kneeling, homesteading, job sites, tactical BMX, rollerblading, motorcycle riding, and any other activity when you need to protect or reduce strain on your knees (or other joints).