Thanks to its unbeatable performance and versatility, you can use our Aenergy Light styles for all seasons and sports. The ultralight midlayer combines the right amount of warmth with optimal moisture management and breathability, making it suitable as a baselayer – for ski tours in winter and hikes in summer. With a helmet-compatible hood and a laminated pocket, this midlayer jacket is the perfect solution for those who value maximum performance at minimal weight. It features a polyester content made from recycled polyester, a glued chest pocket with zipper, flat seams, and a close-fitting hood that can be worn under a helmet.
| Target group | Women | 
| Exact colour description | Marine | 
| Jacket type | Fleece jacket | 
| Fabric properties | Breathable, Quick drying, Ultra lightweight | 
| Material composition | 17% spandex, 9% spandex, Insert: 83% polyamide, Main material: 91% polyester | 
| Item number | 55012333 | 
| Manufacturer | Mammut | 
| Category | Jackets | 
| Manufacturer no. | 1014-05551-5118-112 | 
| Release date | 28.2.2025 | 
| Sales rank in Category Jackets | 2931 of 69529 | 
| Colour | Blue | 
| Exact colour description | Marine | 
| Upper | Polyester, Spandex | 
| Material composition | 17% spandex, 9% spandex, Insert: 83% polyamide, Main material: 91% polyester | 
| Target group | Women | 
| Age group | Adults | 
| Jacket type | Fleece jacket | 
| Clothing size | XS | 
| Layer of clothing | Midlayer / Thermal Layer | 
| Fabric properties | Breathable, Quick drying, Ultra lightweight | 
| Membrane | HDry® Polartec® | 
| Area of use | Sports | 
| Hood type | Helmet Compatible | 
| Fit | Regular fit | 
| Pattern | Unicoloured | 
| Jackets Equipment | Elastic edging, Hood | 
| Style | Outdoor | 
| Season | All-season | 
| Country of origin | Vietnam | 
| Manufacturer commitment | Fair wear, RE100, SBTi | 
| Manufacturer compensation | According to RE100, the manufacturer Mammut fully compensates for its energy consumption, leading to a reduction in emissions. | 
| CO₂-Emission | |
| Climate contribution | 
| Washing instructions | Suitable for washing machines | 
| Weight | 177 g | 
How often does a product of this brand in the «Jackets» category have a defect within the first 24 months?
Source: Digitec GalaxusHow many working days on average does it take to process a warranty claim from when it arrives at the service centre until it’s back with the customer?
Source: Digitec GalaxusHow often is a product of this brand in the «Jackets» category returned?
Source: Digitec Galaxus