Arm sleeves material: made of ice silk material, soft and breathable, slow in sunshine warming up, cooler than bare skieeves size: 2 sizes in total, one is normal size, the other is enlarge size, the length of normal size is approx. 37 to 50 cm, the length of enlarge size is approx. 43 to 57 cm, for the detailed size, you can see the picture shown. one size fits most people
UV protection arm sleeves: arm sleeves can protect your arms from UV radiation in summer and prevent pulled muscle while doing outdoor activities, sports, etc
Wide range of uses: suitable for both outdoor and indoor activities, can be applied when training, racing, running, cycling, fishing,