Ultralight, Minimalist Weather Protection for Fast-Paced Trekking

The Mammut Men’s Alto Light HS Hooded Jacket is a technical powerhouse designed for the minimalist hiker who refuses to sacrifice weather protection for weight. As one of the lightest shells in Mammut's lineup, this jacket is constructed from 2.5-layer Mammut DRY Tour laminate, made from 100% recycled polyester. This PFC-free technical textile delivers a 15,000mm water column and 15,000 g/m²/24h breathability, ensuring you stay dry and comfortable through heavy mountain rain while preventing internal moisture buildup during high-intensity efforts.

Versatility and packability are the Alto Light's core strengths. Designed for trekking, via ferratas, and travel, the jacket features a highly compactable design that allows it to be stored inside its own side pocket when not in use. Despite its minimalist profile, it is equipped with essential technical features including underarm pit-zips for rapid ventilation, a single-point adjustable hood, and pre-shaped sleeves with hook-and-loop cuffs. Weighing approximately 355 grams, it provides a reliable, windproof, and waterproof barrier that disappears into your pack until the conditions turn.

Key Features:

• 2.5-Layer DRY Tour Laminate: Provides a high 15,000mm waterproof rating and 15,000g/m² breathability for reliable storm protection.
• Ultralight & Packable Design: Specifically engineered for fast hiking; the entire jacket stows easily into its own side pocket.
• PFC-Free Recycled Polyester: Eco-friendly 100% recycled fabric with a non-PFC DWR finish for sustainable performance.
• Underarm Pit-Zips: Integrated zippered vents allow for personalized airflow during steep climbs and high-output activity.
• Adjustable One-Point Hood: Features a reinforced peak and a single-cord adjustment system for a secure, comfortable fit.
• Water-Repellent Hardware: Equipped with a rainproof front zipper and zippered side pockets to keep internal gear and layers dry.
• Articulated Sleeves: Pre-shaped sleeve design and adjustable cuffs provide a full range of motion without the hem lifting.
• Bluesign® & Fair Wear Certified: Manufactured in accordance with the highest environmental and social responsibility standards.