The Rab Men's Ascendor Hoody FZ is a performance-oriented full-zip fleece specifically designed for winter climbing. Rab body-mapped this jacket with wind-resistant, air permeable shell material and moisture-managing fleece where you need it most. Wind-resistant, water-resistant Pertex Quantum Air covers the chest, shoulders, and hood to block brisk breezes and the occasional ice spray, while Thermic G fleece makes up the rest of the jacket to wick moisture and dry quickly. Rab fitted this full-zip with a low-profile waist and under-helmet hood to fit winter climbers perfectly. It's easy to layer over a baselayer and under a hardshell, too.