A perfect replacement for sun screen. 100% convenient than wearing sunscreen and never worrying about reapplying, can block 99% of UVA and UVB rays. Ensure comfortable & protective These sleeves keep arms to stay cool and dry during the hot months. One size fits all Premium stretchy materials and simple design ensure these sun sleeves fit all sizes of arms for men and women. Ideal for Outdoor & Indoor Activities A must have for outdoor & indoor activities such as golfing, cycling, fishing, driving, jogging, climbing, boating, gardening, basketball, tennis and ect.