Designed to offer comfortable and versatile protection for long days exploring outdoors the arc teryx zeta ar jacket is constructed from the latest and most breathable gore tex membrane highly prized for its lightweight breathable properties inside this waterpoof membrane sits a gore c knit backer which provides next to skin comfort over thin baselayers hitting at the waist and featuring an adjustable stormhood with adjustable drop back hem the zeta ar jacket is the pinnacle of all r