Armycrew Pique UPF 50+ Performance Flat Bill Snapback Mesh Golf Cap. 99% Polyester , 1% Spandex. UPF 50+ sun protective mesh flatbill snapback cap great for summer outdoor activities. 6 panels, high profile, structured crown. Fitted with an inner sweatband, Stiff and flat bill, grey color under bill. Breathability, Moisture control, Lightweight. One size fits most with an adjustable plastic snap closure.