Mammut Alto Light 3-In-1 Hs Hooded Jacket - Women's

Product Insights & Style Tips

The Mammut Alto Light 3-In-1 HS Hooded Jacket is built for weather chameleons, delivering warmth without the bulk. The shell carries a 2.5-layer Mammut DRY membrane with a PFC-free DWR to fend off rain and snow while staying light. Inside, a removable liner uses zoned Loopinsulation to trap heat at the core, so warmth rises with the season. The shell is 50D x 50D polyester, with a nylon liner and recycled insulation for a practical, ready-for-anything look.

On the move, it adapts with you. The zip-in liner lets you layer warmth with rain protection in one step, or wear pieces solo as conditions shift. Zippered underarm vents plus an adjustable hem tune airflow and seal out wind, while the hooded profile stays sleek over layers. It moves from trail to town without bulk, keeping heat in when you need it and shedding it when you don’t.

Mammut's recycled Loopinsulation and a PFC-free DWR reflect the label's technical, responsible approach. This 3-in-1 setup fits the current drive toward versatile outerwear that handles rain, chill, and wind in one system; pair with fleece or rugged denim for city hikes that feel equally at home on the summit.