We reach for the Mammut Aenergy Light ML Half-Zip Pullover when we want one piece that can do it allfrom frosty dawn ski tours to sunlit summer summits. This featherweight midlayer provides just the right touch of warmth while managing moisture like a pro, making it equally at home as a cold-weather base layer or a standalone piece for shoulder-season hikes. Crafted with recycled polyester and spandex for lightweight stretch, it moves with us whether we're bootpacking steep terrain or setting a quick pace on the trail. Flatlock seams reduce chafing, a bonded chest pocket holds small essentials, and the extended half-zip offers excellent ventilation when we heat up mid-mission. Minimal weight, maximum versatilitythis is the layer we always pack. Material: 90% Polyester (recycled), 1% Polyester, 9% Spandex Fit: regular Length: hip Hood: none Pockets: chest