The Nike Dri-FIT UV Solar Golf Arm Sleeve (1 Pair) is designed to protect exposed skin from harmful rays and offers a comfortable stretch fit with lightweight sweat-wicking fabric. - UVA and UVB protection from the sun in areas covered by the sleeve - Dri-FIT fabric to help keep you dry and comfortable - Stretch opening at upper arm with no-slip taping for a snug, unrestricted fit - Lightweight carrying case with zip closure and mesh at back for secure, breathable storage - Flat-seam construction to reduce chafing - Fabric: Sleeves: Dri-FIT UV 84% polyester/16% spandex