An incredibly versatile mid-layer for treestand hunts or backcountry expeditions, the Men's Klamath Quarter Zip grid fleece construction provides an exceptional warmth-to-weight ratio while reducing wind chill. Additionally, the fleece boasts an advanced, HeiQ Pure(tm), anti-bacterial treatment to manage human odor. The Klamath Quarter Zip features a high-coverage collar to lock in warmth, and an articulated fit and built-in stretch to maintain full range of motion.