Come and see our amazing products. Made of 92% nylon and 8% spandex, soft and breathable, has good sweat absorbing ability, and is cool, fast-drying, and comfortable on hot days. The arm sleeves length is 16.1X3.94", with proper elasticity, suitable for most people to use, giving protection to arms, making outdoor activities go more smoothly. The cooling sleeves are long, can cover most parts of your arms, and will save skin from sun exposure and UV radiation while doing outdoor activities. Pls confirm with us about the packing info, stock color and exact production time before placing your order.