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A focused piece best suited as a light midlayer for fast-moving days in cooler conditions.
Mammut says:
For unbeatable performance and versatility, our Aenergy Light styles solve for a full range of seasons and pursuits. Combining the right touch of warmth with exceptional wicking and breathability, this ultra-light midlayer doubles as a warm base layer to see you through winter ski tours and summer hikes alike. With a snug hood that fits under a helmet and a laminated pocket to stash essentials, it’s the perfect choice for all who seek maximum performance at minimal weight
All Mammut products purchased within the Europe come with an extended 30-month warranty period. For more details click here.
Our Verdict
Lightweight warmth with excellent airflow and a close athletic fit. The Aenergy Light ML Hooded Jacket at 201g (Medium) delivers streamlined performance in a minimalist package. The Polartec Power Grid fleece fabric strikes a strong balance between warmth and breathability, with a textured interior that helps regulate temperature during high-output use. The athletic fit feels close but not restrictive; however, layering over bulkier garments could be limited.
The hood fits neatly under a helmet or shell, and flatlock seams ensure a comfortable fit over extended wear. The bonded chest pocket is well-placed and low-profile, although storage is minimal; I found moisture built up behind this panel. This latest version features a slightly lighter build and improved sustainability, thanks to its high content of recycled polyester.
- Reviewed by Ultralight Outdoor Gear
Features
- Polyester content made from recycled polyester
- Bonded chest pocket with zipper
- Flatlock seams
- Fitted hood can be worn under a helmet
Specifications
- Small weighs: 194g
- Medium weighs: 201g
- Large weighs: 223g
- XLarge weighs: 247g
- Athletic Fit:
Material & Construction
- Face Material (B2B): 91% Polyester (recycled), 9% Elastane
- Recycled
- bluesign® PRODUCT
- Fair Wear
