50+ UPF / 95% UV sun protection rating! 100% moisture-wicking performance microfiber polyester. Tapered neck and shoulders with rib knit cuffs. Wash instructions, Cold water, Like Colors, Hang dry. 100% moisture-wicking performance microfiber polyester. Tapered neck and shoulders with rib knit cuffs. Wash instructions, Cold water, Like Colors, Hang dry.