Age : Above 13 Material : Products Name : Knee Brace   ABSORBENT, BREATHABLE, SKIN-FRIENDLY CORMFORT-Using three-dimensional wearing, fiber cross-section coverd space, it can instantly absorb and evaporate large amounts of water, circular breathing, in order to protect the movement of the knee, to keep cool and comfortable. 3D THREE-DIMENSIONAL STRUCTURE OF WOVEN-High-precision 3D cutting technology of knitting, ergonomic, 360-degree body curve perfect fit knee, wearing more comefortable. Contoured Fit allows for maximum comfort and prevents slippag. INJURY PREVENTION-Soft neoprene material with knee buffer washer keeps your knee warm, lubricating your joints. Popliteal fossa special weaving technology on both sides of the rib support preventing injuries.  Material:Nylon Knee sleeve length:30-31 cm / 12 inch Size Guide:M( Suitable for Leg circumference: 35-41 cm / (13.78 -16.14 inch) L( Suitable for Leg circumference: 42-47 cm / (16.54 -18.5 inch) XL( Suitable for Leg circumference: 48-55 cm / (19 - 21.6 inch) XXL( Suitable for Leg circumference: 56-62 cm / (22 -24.4 inch) 3XL( Suitable for Leg circumference: 57-65 cm / (22.44 -25.59 inch) NOTE: The size is measured by hand, please allow 1-2 cm error.  Package Includet:1 pc x Knee Pad