BREATHABLE FABRICS --- 85% Chinlon+15% Lycra Spandex. 85% Chinlon is diffrent from others' Polyester, Chinlon is more expensive double price than Polyester, and more Elastic Soft Smooth and Wearable; 15% Spandex makes the Knee Pads more Elastic and Flexible. are useful to protect the leg and knee from pulling during in outdoor activities.^DESIGN --- Nice workmanship with EVA pads design to protect your knees and legs from crash pulling during the sporting. Light smooth & high elastic fitting, rapid perspiration, drying and good breathable as well with anti slip silicone gel band avoid to fall off.^APPLICATIONS --- It is mainly designed for contact sports: Basketball, Football, Baseball, Volleyball, Lacrosse, Paintball, Soccer etc. Protecting you from abrasions and scratches or just keeping your muscle warm, increasing blood flow to your knee during a recovery. These sleeves are the perfect companion for any and every athleteThe sleeves come in both youth sizes, as well as adult sizes and can be worn by men, women, boys, girls, kids.^SERVICE --- 100% after-sales service, whoever you or your kids, whatever teared or ripped, just send pictures to us, would be free to arrange a new shipment to you.Item NO.3975390