"What Our Gearhead® Experts Are Saying:""Anytime I know I’ll be working hard in cold conditions, this is the layer I plan around. It breathes exceptionally well on the move, but the smooth face fabric adds just enough protection when the wind picks up. I like being able to dump heat quickly with the full zip without stopping.""Cold alpine mornings demand layers that work as hard as you do. The R1 Thermal Full-Zip Hoody is built for those days when movement never really stops—skin tracks before sunrise, long ridgelines, and technical sections that keep your heart rate up. It stays warm without trapping heat, letting you focus on the line ahead instead of constant layering changes. A soft microgrid interior manages moisture as effort increases, while the durable outer face sheds wind and light snow when conditions shift. Designed to move seamlessly under a shell or on its own, the R1 Thermal Full-Zip Hoody is a dependable partner for high-output missions in cold environments."