Mammut Assos x Mammut ML Hybrid Vest

A lightweight insulated hybrid vest from the ASSOS x Mammut collaboration, designed for cycling, mountain activities and multi‑day trips. It pairs active insulation with a breathable, packable outer fabric.

Main benefits

• Polartec® Alpha® active insulation: provides warmth at low weight and vents excess heat during activity.
• Pertex® Quantum Air: outer fabric offering high breathability and compact packability.
• PFC‑free DWR: moisture repellent finish without perfluorinated chemicals.
• Body‑mapped hybrid construction: targeted wind protection where needed and improved thermoregulation while moving.
• Two zippered front pockets: secure storage for small items on the move.
• Athletic fit: close, performance‑oriented cut suitable for layering.

The vest works as a light midlayer for mixed aerobic activities — cycling, ski touring, hiking and bikepacking — where reliable insulation, high breathability and low weight are required.