The GORE-TEX Rain Hat is engineered for weather protection without compromise. The outer shell features 100% recycled 50d polyester treated with a non-fluorinated water-repellent finish, while a recycled 20d polyester tricot lining provides comfort. These layers sandwich a PFAS-free ePE membrane that delivers genuine GORE-TEX performance, meeting the brand's rigorous waterproofing standards whilst eliminating harmful fluorinated chemicals.