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With this lightweight ski touring backpack, you'll be effective on the snow without sacrificing comfort, durability or features. Inspired by the design of a trail running vest, the ergonomic suspension system guarantees a tight fit without restriction, keeping the load stable and close to your back. The compression straps can also be converted into a hip belt. Almost all compartments are accessible when on the move and you can access the main compartment through the back opening. For climbing passages you can attach your skis diagonally without removing the backpack. Besides the special compartment for avalanche equipment, features like the rope holder and holders for an ice axe, trekking poles and helmet make the 20- to 25-liter-volume Aenergy ST a backpack for ambitious ski touring without compromise.

Aenergy ST 20-25

Lightweight technical ski touring backpack  

The bluesign® SYSTEM is a solution for sustainable textile production that eliminates the use of harmful substances. bluesign® PRODUCTS guarantee a responsible use of resources with a minimum impact on people and the environment.

bluesign® PRODUCT

Perfluorinated compounds (PFCs) are often used for waterproofing but are practically non-biodegradable. Mammut is committed to replacing non-biodegradable fabric treatments with more sustainable high-performance alternatives.

PFC-free DWR

Fair Wear works to ensure fair and safe working conditions in garment factories. The non-profit engages directly with factories, trade unions, NGOs and governments to protect workers’ rights.

Fair Wear

This product contains recycled materials with uncompromised performance and functionality. Choosing recycled materials reduces the use of virgin resources and helps promote a more circular economy.