Coolibar UPF 50+ Unisex UV Mask - Sun Protective Polyester/Spandex Pull On closure White Blocks 98% of UVA/UVB rays; Beige Blocks 94% of UVA/UVB rays Knit SUNTECT&reg;: Lightweight and breathable with Cooltect&trade; technology accelerates moisture wicking; Soft, comfortable, 4-way stretch mesh construction Ultimate sun protection for lower portion of face; Shapeable wire around nose piece for custom fit and comfort; Elastic back that adjust to fit all head shapes and sizes; Flatlock construction prevents irritation against the skin Mask length at center front; (S/M) 4 1/2 inches (L/XL) 5 3/4 inches; Easy care: machine wash, tumble dry; Imported Recommended for achieving Ultimate Coverage in Sun Protection while participating in outdoor activities wearing UPF 50+ clothing