Trekmates RushUp GORE-TEX Cap A stretch mountain cap with GORE-TEX waterproof and breathable technology, fleece lining and foldable earflaps. Stay cosy in the Rushup GORE-TEX Cap. The durable stretch outer fabric allows you to move without restriction and withstands the tests of the trail. The GORE-TEX insert ensures durable, breathable waterproof protection, whilst the Polyester fleece lining is soft and warm against the skin. The lightweight, flexible, mouldable peak ensures visibility and protects your face and eyes from the elements. Laser-cut holes in the lining at the ear area provide improved hearing function, and the shaped close fit ensures maximum protection. Finally, loops on the earflaps allow you to add a string should you wish, providing extra security.