Cool Material: UV protection cooling arm sleeves are made of high quality nylon and spandex. They can block harmful UVA and UVB rays to prevent sunburn and skin aging. Our arm sleeves are stretchy, breathable, anti-pilling and durable. Elastic Design: Sun-protective, breathable arm cover with thumb hole prevents the sleeves from slipping off your arms. A thumb slot on the sleeves allows you to cover or uncover your hands, perfect design for seamless sewing skills. One Size Fits All: Each long compression arm cover has a total length of 30cm, which fits all upper arm sizes between 8 and 15. is. The package contains 3 pairs of UV protection arm sleeves in 3 different colors. black, white, grey. Breathable and comfortable: UV protection cooling arm cuffs can sweat quickly and dry quickly, ensure excellent comfort and make your skin fresh all day. The V knitting process fits the curve of the arm and helps the arm relieve pressure better. Multifunctional Application: Compression long arm cover, suitable for any outdoor sports and activities, such as golfing, cycling, fishing , driving, jogging, climbing, boating, gardening, basketball, tennis, also suitable for indoor activities, even for your workplaces.