3 PACKS UV protection. The sleeves have UPF 50+ protection and can filter over 98% UV rays. Cool mosquito control. Sleeve material with anti mosquito bite additives function, can drive away mosquitoes, is the necessary single product in summer. Average size. There is no pressure or discomfort in any activity. Suitable for men and women of all sizes as our neutral sleeves are incredibly elastic. In addition, we offer 2 colors: black and navy blue.L mark is added inside left cuff to distinguish right hand from left. There is always a pleasing item in different color combinations. Durable washable. Made of durable material (84% nylon, 16% spandex).Seamless knitted fabric, and four needle six thread process, upper sleeve arm oil silicone anti-skid rubber band is not easy to fall off, comfortable to wear.The product can be washed by hand at low temperature.