Mammut Aenergy Ml Half-Zip Pullover - Men's

Product Insights & Style Tips

The Mammut Aenergy Ml Half-Zip Pullover is a kinetic layer built for fast days and chilly descents. The midweight fleece moves with you, while a gridded interior traps heat without adding bulk. Breathable enough to keep the microclimate from getting swampy as you push pace, it stays comfortable from trail to town. Polartec Power Grid, 89% recycled polyester and 11% spandex, keeps the fabric light yet substantial. The hip-length, athletic cut reads modern and layers with ease.

Half-zip vent lets heat escape as you rise, while the athletic silhouette stays close without feeling tight. It layers smoothly over a base layer or under a shell, and midweight warmth travels from alpine workouts to casual days without asking for a second layer. The look stays clean, versatile, and ready for changing weather.

Within Mammut, this piece sits at the intersection of rugged performance and responsible design. The recycled Power Grid fleece speaks to sustainability in technical wear, while the streamlined silhouette nods to outdoor heritage meeting modern life. Style notes: pair with denim or a shell for a city-slope vibe.