The Mens Hillwalker GTX Jacket IA from Berghaus is an excellent Gore-Tex waterproof jacket with enhanced breathability to keep you dry and comfortable when you are walking or hiking. Wear in all weathers by adding a Berghaus Interactive Fleece when it’s really cold. FEATURES IA (Interactive) zip Gore-Tex® waterproof guaranteed fabric Highly breathable Roll-away hood Adjustable cuffs 2 Handwarmer pockets Ripstop fabric provides hardwearing durability and tear resistance Weight: 644g Glossary Gore-Tex® is a highly breathable, fully waterproof and windproof membrane with microscopic pores about 20,000 times smaller than a drop of water but 700 times larger than a water vapour molecule. This prevents water from penetrating while allowing vapour to escape. InterActive Berghaus inner fleece jackets and outer shell jackets are designed to zip together using an IA zip and attachment points to create a single garment that provides extra warmth. bluesign® approved fabrics meet a textile industry standard for a reduced environmental impact throughout the whole manufacturing process.