The Mammut Lightweight Midlayer with Athletic Fit is a high‑performance mid‑layer jacket designed for outdoor activities and active lifestyles. Its slim, body-hugging cut and breathable fleece construction deliver warmth, comfort, and freedom of movement — ideal for hiking, climbing, or layering under a shell in cooler weather.

Key Features:

Lightweight and breathable fleece fabric with excellent warmth‑to‑weight ratio.
Athletic (slim) fit — close to the body for easy layering under outerwear, without bulk.
Stretch‑enabled material for full freedom of movement during climbing, hiking, or active use.
Moisture‑wickling and quick‑dry properties to help regulate body temperature and keep you comfortable.
Durable construction with recycled polyester blend — combines sustainability with performance.
Close‑to‑body cut and streamlined design — reduces bulk and layers well underneath hardshells or jackets.
Two zippered side pockets for secure storage of small essentials or warming hands.