【UPF 50 UV Protection】The sleeves are made of soft premium fabrics, 90% nylon and 10% spandex. They can block over 98% of harmful UVA and UVB rays to prevent sunburn, protect your skin, and offer full UPF 50 protection. Perfect for hot, sunny days to protect yourself and your family from the sun. 【Elastic for Fit & Washable】The men's sleeves measure 36 cm and can stretch up to 120 cm. The upper arm circumference is 9.7 cm. They are stretchy, one size fits most, and they are easy to machine wash and hang to dry. 【Seamless】The women's sleeves are made of quality material and feature fine sewing skills. The fabric is strong and will not fray or break easily, even if washed for a long time, and it does not easily snag due to the meticulous stitching with high-quality articulated seams. 【Sleeves to Cover Tattoos】The compression sleeve can cover the tattoo and keep your arms cool and dry. For complete tattoo coverage, choose black sleeves. Black sleeves can completely cover the tattoo, but white sleeves do not cover the tattoo well. 【For All Sports and Outdoor Activities】The women's compression sleeves are suitable for long hours in the sun, keeping you comfortable and cool whether you are driving, running, jogging, golfing, fishing, playing basketball, cycling, hiking, or even gardening. You can be protected all day while performing any outdoor activities. 1 2 3