Where to use: these arm sleeves can be applied in various occasions, such as walking, training, cycling, fishing, driving, golfing, jogging, climbing or any other outdoor activities, which are necessary supplies for your life, especially useful in summerEasy to Use: the sleeve length is about; 37 cm/ 14.6 inches, with appropriate elasticity, you may need this kind of sleeve to protect your arm and make your outdoor activities more smoothDifferent colors to choose: there are different colors which are shown in the picture, can meet your matching needs, also can be served as gifts to your family and friendsPractical design: our cooling sleeves are long ones, can cover most part of your arms, will save your skin from sun exposure and UV radiation while doing outdoor activities, suitable for both men and women to use; Note: nylon sleeves can't cover tattoos, while polyester sleeves can cover tattoos; Nylon is light and breathable, size is too small, suitable for women to wear; Polyester fiber, more suitable for men to buyComfortable material: arm sleeves made of ice silk or knitted ice silk are soft, breathable and sweat absorbent, which makes you feel cool and dry quickly, and will be very comfortable to wear in hot weather; Note: small size, light material, non-pressure cuff, not suitable for too thick arms