Mammut Aconcagua Light Midlayer Jacket Women's

The Mammut Aconcagua Light Midlayer Jacket Women’s is a lightweight fleece layer designed for cooler outdoor conditions. It sits between a base layer and an outer shell to help retain warmth without adding too much volume.

With a blend of 56% polyamide, 32% polyester and 12% spandex, this full-zip jacket combines durability, moisture management and stretch. The athletic fit keeps the cut close to the body for easy movement, while the streamlined design—without a hood—fits neatly under other gear or a backpack. As a bluesign® certified product made under Fair Wear standards, it also reflects responsible material sourcing and fair manufacturing practices.

Polyamide, commonly known as nylon, adds abrasion resistance and helps the jacket maintain its shape over time. Polyester fibers wick moisture away from the skin and dry quickly, and the spandex content ensures the fabric stretches and recovers, so the jacket moves with you during activity.