INJURY PREVENTION - High density independent cellular gasket design. the multi mutually supporting cell foam will provide cushion for external pressure. effectively counteract and disperse impact forces when hit. reduce muscle and bone damage.The padding is a bit thicker than others but not decrease mobility. MOISTURE WICKING TECHNOLOGY - uunumi volleyball knee pads made from high-density polyester Lycra fabric. rapid perspiration. fast drying and good breathable. wicking and comfortable to wear. nicely brace your leg. knee. shin. offering full protection. Keep you Cool & Dry in outdoor activities. This Knee Compression Pads is your best choice! NON-SLIP INNER SILICONE STRIP- This compression knee sleeve Embedded 2pc elastic slip strips. prevent Leg Sleeve being loose when movement. and it is useful to coordinate muscle capacity and to protect the skin. Extended length of leg sleeve protects leg from scrapes and cuts. Create a healthy and comfortable sports life for you. EXTRA KNEE SUPPORT FOR ALL SPORTS - it's mainly designed for contact sports: basketball football baseball hockey lacrosse paintball soccer etc. we also recommend it in any sports collision might occur. like volleyball skating cycling climbing running Tennis badminton or for daily wear. Protecting you form abrasions and scratches or just keeping your muscle warm. increasing blood flow to your knee during a recovery. CHOOSE THE MOST SUITABLE SIZE - This compression leg sleeve suitable for women.men. boys and girls with 4 size(S.M.L.XL). Please refer to the size chart in the image before you buy. we specially recommend it for Kids. youth in daily practice. If the measurements are at top of the size range. we recommend selecting the next size up for comfort.