When temps drop and your hiking gear is soaked with sweat, you're forced to make a tough call-keep going or turn back. The ACG Wolf Grid top is designed to keep you out there. The breathable grid-back fleece adapts to changing conditions. It wicks away moisture and stores your body heat to help you stay warmer with less, so you can experience more. Fit & Design: Half-zip design lets you adjust your fit and coverage Elastic hem and cuffs helps seal in your warmth and hold the top in place through your adventure The perfect package-warm, dry and breathable Contouring checkerboard-patterned fleece feels soft and light on your skin The raised square sections help store your body heat for warmth The low square sections rest closer to the skin to help wick sweat through thin, breathable channels and away from your body By combining a lightweight and packable design with Nike Therma-FIT tech, Wolf Grid maximizes the warmth-to-weight ratio Flat seams and stitched panels through the shoulders and underarms are designed to follow the shape of your body, so you can hike and scramble with less restriction Thumbholes Vertical zippered chest pocket Embroidered ACG logo at left chest Technology: Nike Therma-FIT technology helps manage your body's natural heat to help keep you warm in cold-weather conditions