hopeshine arm cooling sleeves upf 50+ uv sun protection for cycling outdoor sports 3-pairs hopeshine -ultimate uv protection: uv-r, uv-a, uv-b block 99.8% <br> -non slip elastic bands on top and bottom <br> -protect your arms from aging, sun-burn more than arm cooling<br> -excellent cooling effect material,stretchy,comfortable and fast drying. <br> -for cycling, fishing, golf , drive, basketball,football, tennis,claiming and all other outside activities.