Featuring UPF 50 fabric, we’ve also added GTT's revolutionary Empel™ Technology, an environmentally friendly PFC-free water-repellant finish that is superior in performance compared to any other C-6, C-8, or C-0 DWR. The Alpenglow Pro also sports a ¼ zip opening for regulating body temperature, HeiQ Pure underarm mesh panels for extra breathability, a concealed chest pocket, thumb-loops, and an over-the-helmet compatible hood, making this hoody an essential layer from the desert to the alpine.