Ali Huang(TM) Cycling Bike Bicycle Arm Sleeve Speed Series Summer UV Protect Arm Cooler Cooling Sleeves - 1 Pair Bike Arm Sleeve used for protecting arm from UV rays. Quick-dry function and make you feel more comfortable. Anti-slip gel bands on the cuff to avoid slipping during exercise Great for outdoor activities such as golf, tennis, fishing, baseball, climbing, jigging, cycling, soccer or driving, etc. It can keep you dry and cool in the hot condition, very comfortable and warm in cold condition