Race to Zero: The new Mammut trail running collection for summer 2023.

The 100% decarbonized Aenergy trail running series builds on Mammut's long-standing mountain sports expertise to offer an ultra-light and compressible solution that can simultaneously withstand demanding and changeable alpine conditions.

Mammut's return to the trail running segment means more than just covering distance: All CO2 emissions generated in the production of the collection are actually removed from the atmosphere as part of a cooperation agreement with Climeworks and other partners. Decarbonization pays into Mammut's commitment to reach its goal of Net Zero by 2050. In May, the Strava Challenge "Race to Zero" will inspire runners to actively undertake something for climate protection.

Highlights of the collection include the Aenergy TR HS Hooded Jacket, the Ae​​nergy TR WB Hybrid Vest, the Aenergy TR 2 in 1 Shorts, the Aenergy TR 5 Race Vest and the Aenergy TR BOA® Mid Trail Running Shoes:

Aenergy TR BOA® Mid GTX & Aenergy TR BOA® Mid

The Mammut trail running shoes for medium to long distances in alpine terrain: even the most demanding trail running conditions are not an obstacle thanks to the shoes' Vibram Megagrip outsole with Litebase technology and low weight. Since comfort is paramount in these models with elastic sock construction, a generously cushioned EVA midsole has been integrated. The upper material has a high level of breathability, so the wearer can focus on the challenges presented by the trail. The precise BOA® Fit System can be infinitely adjusted, even when wearing gloves, and ensures optimal individual hold. A rubber edge protects against scree and reflective elements makes the runner visible. The GTX version features a GORE-TEX membrane to keep feet dry.

Flex Index: A5 | heel drop: 7 mm | lacing system: Boa® Fit System | last index: multifunction

GTX Version:
SRP: 220.00 EUR | 190.00 GBP | 2499.00 NOK
Men: Size EU 40–48 | UK 6.6–12.5 | dark jade-white, black-dark tangerine
Women: Size EU 36–42 ⅔ | UK 3.5–8.5 | dark jade-white, black-dark tangerine

Version without GORE-TEX:
SRP: 200.00 EUR | 190.00 GBP | 2499.00 NOK
Men: Size EU 40–48 | UK 6.6–12.5 | dark tangerine-white, marine-white
Women: Size EU 36–42 ⅔ | UK 3.5–8.5 | dark tangerine-white, marine-white

Aenergy TR HS Hooded Jacket Men & Women

Mammut's lightest 3-layer hardshell jacket to date with the smallest pack volume was developed specifically for fast-paced activities such as trail running and is not only featherlight (155 g/ M), but also 100% wind- and waterproof (water column: 20,000 mm). Thanks to Mammut DRY technology™, it is also extremely breathable (20,000 g/m²/24 h). The pre-shaped, close-fitting hood offers a clear view and has a reinforced peak. Thanks to the minimal seams, a reflective element and the slightly asymmetrically cut arm cuffs that are elasticated on the inside, the Aenergy TR HS Hooded Jacket is ideal for any trail running tour. This Fair Wear jacket is treated with a PFC-free, permanently water-repellent impregnation (DWR).

SRP: 280.00 EUR | 225.00 GBP | 1395.00 SEK | 2999.00 NOK
Men: Size S–XXL | dark tangerine, dark jade, black-white
Women: Size XS–XL | dark tangerine, dark jade, black-white

"Trail running is the basis of my training for mountaineering. As a professional alpinist, I cannot train continuously in high alpine terrain. Thanks to my technical skills, I can very easily transfer the fitness I gain from trail running to the alpine terrain," says Nicolas Hojac, Mammut Mountaineering athlete.

Aenergy FL T-Shirt Women Light Fader

The Aenergy FL T-shirt made from 100% recycled polyester is the lightest first layer for women from Mammut (76 g/ M) and impresses with highly technical features: mesh ventilation zones under the arms and on the back make it extremely breathable. The fast-drying material is sweat-wicking and guarantees optimal temperature regulation. The bio-based HeiQ Fresh FFL Finishing technology reduces unpleasant odors. Low-friction offset smooth merrow stitch seams provide additional comfort. Reflective detailing provides enhanced visibility in the dark.

SRP: 70.00 EUR | 56.00 GBP | 348.00 SEK | 749.00 NOK
Women: Size XS–XL | night, black

Aenergy FL Half Zip T-Shirt Men

Mammut's lightest (106 g/ M) first layer made from 100% recycled polyester impresses with high-tech features and is ideal for a wide range of sports. Wearer comfort is increased by offset, smooth merrow stitch seams and body mapping mesh with different ventilation zones. The active moisture transport quickly wicks away sweat and ensures optimal temperature regulation. The long half-zipper makes it easy to put on and offers quick ventilation in warm temperatures. In addition, the Aenergy FL Half Zip T-shirt is breathable, fast-drying and odor-inhibiting thanks to being treated with HeiQ Fresh FFL, a bio-based technology. The tee's reflective elements mean the wearer remains visible for a long time, even after sunset. The half-zip version of the technical Fair Wear T-shirt is a must-have for all outdoor fans.

SRP: 80.00 EUR | 65.00 GBP | 395.00 SEK | 849.00 NOK
Men: Size S–XXL | tangerine-dark tangerine, marine, dark jade-woods, highlime-alloy, deep ice-marine, black

Aenergy WB Hybrid Vest Men & Women

This durable, windproof and very lightweight (79 g/ M) insulation vest provides perfect protection to the upper body during sporting activities. The breathable stretch insert on the back allows maximum freedom of movement, while the Pertex® Equilibrium Double-Weave material wicks sweat away quickly and ensures the vest is fast drying. The chest pocket makes it easy to store everything that is needed, while reflective elements ensure increased visibility in the dark.

SRP: 120.00 EUR | 95.00 GBP | 651.00 SEK | 1399.00 NOK
Men: Size S–XXL | dark tangerine-black, black
Women: Size XS–XL | white black

Aenergy TR 2 in 1 Shorts Men Light Fader & Aenergy TR 2 in 1 Shorts Women

Made to go the distance, the special printed edition of Mammut’s 2 in 1 shorts are perfect for long outdoor runs. An unbeatable combo: the comfortable inner tights provide light support, active moisture management, and a stretch pocket for distraction-free smartphone storage. The quick drying outer layer made of 2-way stretch and the elastic waistband with drawstring is ideal for adjusting width perfectly. The shorts feature reflective detailing to increase visibility at night. Gels and keys can be safely stashed in one of the front pockets or the zippered pocket on the waistband.

SRP: 120.00 EUR | 100.00 GBP | 651.00 SEK | 1399.00 NOK
Men: Size 44–56 | black
Women: Size 32–46 | dark tangerine-black, black

Aenergy TR 5 Men & Women

Specifically designed for high tempo activities, this hydration vest is at the sweet spot between comfort and practicality: The ultra-lightweight (180 g/ M), breathable design is complemented by wide, ergonomically shaped shoulder straps and various adjustment options at the chest and sides for an optimal fit. The vest fits snugly without slipping or chafing. Practical features include a zippered back pocket, two soft flask holders (flasks included), a compartment for a hydration system, a trekking pole carrier, and two quick-access pockets for gels and energy bars. The carrying system of the women's version is adapted to the female anatomy. A durable PFC-free impregnation (DWR) repells water.

SRP: 160.00 EUR | 130.00 GBP | 761.00 SEK | 1599.00 NOK
Men: Size XS–S - XL–XXL | black-cloud
Women: Size XXS–XS - L–XL | black-cloud


Aenergy TR Headband

Keep sweat and hair out of the face with this lightweight (14 g) and comfortable headband made from 100% recycled polyester. Reflective elements ensure the wearer remains visible ​ after sunset. Other features include active moisture management and odor-inhibiting thanks to HeiQ Fresh FFL treatment—a bio-based technology that reduces unpleasant odors.

SRP: 20.00 EUR | 18.00 GBP | 116.00 SEK | 249.00 NOK
Unisex: One Size | tangerine, salmon, night, highlime, dark jade, deep ice, white


Aenergy TR Visor

This ultra-light visor (19 g) was designed for days with glaringly bright sunshine. The comfortable, stretchy and fast-drying fabric makes it the ideal accessory for sweaty trail runs. HeiQ Fresh FFL, a bio-based technology, reduces unpleasant odors. Thanks to the reflective elements, enhanced visibility is given in the dark. The flexible visor makes it easy to stow in the backpack. The entire Mammut trail running collection is 100% decarbonized. CO2 emissions generated in production are removed by ClimeWorks and other partners. This Fair Wear and bluesign® product is made from recycled polyester.

SRP: 27.00 EUR | 22.00 GBP | 139.00 SEK | 299.00 NOK ​
Unisex: S–M - L–XL | tangerine-black, highlime-black, deep ice-night, black

Light, functional and 100% decarbonized.

The entire Mammut trail running collection is 100% decarbonized. This means that the emissions caused by production are not only offset, but actually removed from the atmosphere. To achieve this, Mammut has enlisted the support of partners such as Climeworks. Climeworks is a pioneer and leading company in the removal of CO2 from the air with its "Direct Air Capture" technology. This means that the CO2 removed is stored safely and permanently or recycled as a raw material. ​
Further information…

Strava Challenge "Race to Zero”

Throughout the month, Mammut has planned running meets and local Challenge segments in various cities. Those who show their segment badge at participating stores after completing 20, 40, 60, 80 or 100 kilometers will receive discounts and prizes. 

All finishers will also receive a 20% discount on Mammut clothing and a 20% discount on CO₂ removal at Climeworks.com. One will additionally be entered into a drawing to win one of five new 100% decarbonized trail running outfits from Mammut. 

All information and participation from 24. April 23 at: https://www.strava.com/clubs/mammut-512154 

For every 10,000,000 miles run, Climeworks will remove 10 tons of CO₂ from the air so it can no longer contribute to climate change.


The new trail running collection will be available from spring exclusively online at Mammut.com and at selected specialist retailers.


Find here a form to request a test sample:

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Just click on gallery bellow and press the blue "Download" button in the gallery view.

Action Images – © Mammut:

About Mammut

Founded in 1862, Mammut is a Swiss outdoor company that provides high-quality products and unique brand experiences for fans of mountain sports around the world. This leading international premium brand has stood for safety and pioneering innovation for 160 years. Mammut products combine functionality and performance with contemporary design. With its combination of hardware, shoes and clothing, Mammut is one of the most complete suppliers in the outdoor market. Mammut Sports Group AG operates in around 40 countries and employs around 800 people.


Media contact

Dani O. Kommunikation is in charge of Mammut's PR activities in Switzerland, Germany, Austria, the UK and Scandinavia. If you have any questions or interview requests, please do not hesitate to contact us.

Dani O. Team

Dani O. Team

Information Broker, Dani O. Kommunikation

About Mammut

Mammut is a Swiss outdoor company founded in 1862 that offers mountain sports enthusiasts worldwide high-quality products and unique brand experiences. For over 160 years, the world's leading premium brand has stood for safety and pioneering innovation. Mammut products combine functionality and performance with contemporary design. With its combination of hard goods, footwear, and clothing, Mammut is one the leading head-to-toe suppliers in the outdoor market. Mammut Sports Group AG is active in around 40 countries and employs approx. 800 people.



Dani O. Kommunikation is a boutique communications & PR consultancy working for Mammut.