Coolibar UPF 50+ Unisex Skull Cap - Sun Protective Polyester/Spandex Blend Pull On closure UPF 50+ - protects against 98% of UVA and UVB rays Knit SUNTECT&reg;: Lightweight and breathable with moisture wicking for quick dry performance; Cooltect&trade; technology accelerates moisture wicking Performance fit; Soft, comfortable, 4-way stretch mesh construction; Flat lock seams prevents irritation against skin Easy care: machine wash, tumble dry; Imported Recommended for achieving Ultimate Coverage in Sun Protection while participating in outdoor activities wearing UPF 50+ clothing