【UPF 50 UV Protection】Cooling sleeves are made of premium soft fabrics, 90% Nylon and 10% Spandex. And it can block over 98% of harmful UVA and UVB rays to prevent sunburn, skin aging, which offer full UPF 50+ protection. Perfect for hot sunny days to protect yourself and others from the sun.
【Stretch to Fit and Washable】The sun sleeves for men and women is 14.17 inch/ 36cm and max stretches to 47 inch/ 120cm. the upper arm circumference is 3.8 inch/ 9.7cm. They are stretchy, one size fits all, and easy to machine wash and hang dry.
Fastening: Pull On