The Sawtooth Hybrid Jacket sets a new standard in versatility for western and treestand hunters alike. 19.5 micron, 300g pure Merino wool provides the extreme odor resistance and breathable warmth you've come to expect from First Lite Merino, while DWR coated nylon panels provide critical durability and water resistance where you need it most--the chest and shoulders. Body-mapped to preserve core body temperature, we've added 60g 37.5 synthetic insulation behind the durable nylon panels in the chest for added insulation and wind resistance. The merino back allows for greater airflow in the mid and lower back where packs and trees trunks typically cause heat and moisture to build. Worn as a light outer layer for brisk early season days or worn in conjunction with other outwear for added warmth on winter days, the Sawtooth Hybrid defines versatility in a cornerstone of the First Lite layering system.