it can withstand up to 20

while allowing for breathability and 4-way stretch through the golf swing

keeping you fresh after exercise or in warm conditions

Rolled hem

Galvin Green Axiom Golf Hat - Black Colour:Black it can withstand up toGORE TEX Paclite Technology features the lightest, most packable fabrics. Durably waterproof, windproof, and extremely breathable. The GORE TEX membrane contains over 1. 4 billion microscopic pores per square cm. These pores are 20,000 times smaller than a water droplet, but 700 times larger than a water vapour molecule, which makes the GORE TEX membrane completely water proof from the outside, while allowing perspiration to escape from the inside.