1> Material Polyamide Fiber And Latex Blend, It Has High Toughness, Good Wear Resistance, High Tensile Strength And Fast Recovery Performance.2> Non-Slip Silicone. There Is A Kind Of Zigzag Silicone At The Top/Bottom Of The Support, Which Is To Let The Support Not Slip On Your Leg When You Are Doing Whatever You Are Doing, Which Is Great, You Can Go For A Run And Not Never Have To Stop To Adjust The Supports.3>If You Need Knee Pads, They Are Very Well Made, Comfortable And Provide Good Support. It Goes Well With Good Compression And Is Comfortable To Wear.4>Compression Knee Sleeves Help Relieve Knee Pain Related To Hypermobility; When They Climb Stairs Or Run, They Suffer From Joint Pain In Their Knees. You Can Use Them Everyday At The Gym, Running, Hiking, Basketball Or Soccer, And Other Sports.5> See Size Chart. Measure Your Thigh, Order The Recommended Size And Enjoy The Product. It'S Probably Best Not To Wear Overnight As It May Limit Your Circulation.