Specifications: High elasticity fabric, soft, comfortable and breathable. With anti-skid silicone strip design, effectively prevent falling off. Protect your arm effectively, reduce the risk of muscle strain during sports. Suitable for cycling, running, basketball, football, etc. Type: Arm Sleeve Crowd: Adult Material: Spandex, Silicone Features: Comfortable, Elastic, Anti-slip, Breathable M Size: Length: 38cm/14.96", Top: 23cm - 27cm/9.06" - 10.63", Bottom: 13cm - 15cm/5.12" - 5.91" (Approx.) L Size: Length: 39cm/15.35", Top: 25cm - 29cm/9.84" - 11.42", Bottom: 15cm - 18cm/7.09" - 7.87" (Approx.) XL Size: Length: 40cm/15.75", Top: 27cm - 32cm/10.63" - 12.60", Bottom: 18cm - 20cm/10.63" - 12.60" (Approx.) Notes: Due to differences in lighting and screen settings, the color of the project may be slightly different from the picture. Due to different manual measurements, allow for slight size differences. Package Includes: 1 x Arm Sleeve (Only 1Pc, Not 1Pair)