UPF Protection 50+ UV Coating delivers the highest degree of sun protection of any Callaway Golf hat, making this sun hat ideal for when the temperature soars on the golf course. Protect your head, stay cool and keep your round going for as long as you want to! You may find yourself wearing this everywhere. With UPF 50 UV protection, Callaway's 2022 Sun Hat offers the most sun protection of any in their range Lightweight, unstructured design 100% Polyester Machine Wash Fastening: Drawstring Sun Hat