The Mammut Aenergy ST 20-25 is a lightweight, technical and expandable backpack designed for ski touring, mountain training and mountaineering.
Its CONTACT suspension system is inspired by trail running vests. The ergonomic construction keeps the pack close to the body and the load stable near the back without restricting freedom of movement during ascents.
Large mesh pockets on the shoulder straps provide quick access to small items, nutrition and essential accessories. The elasticated chest strap improves comfort and allows a precise fit.
Capacity can be adjusted from 20 to 25 liters using the zippered roll-top closure.. The main compartment can also be accessed through a rear zipper, making it easier to find equipment without unpacking the entire bag.
A dedicated front compartment keeps avalanche safety equipment organized and quickly accessible. The pack also features a speed ski attachment, an integrated helmet carrier and a rope attachment on the flap.
The front compression system can be removed and used as a hip belt when additional stability is required. The backpack is also compatible with hydration systems.
A compact and functional choice for fast ski tours, offering a stable fit without sacrificing essential technical features.
Main features
- Expandable capacity from 20 to 25 liters
- CONTACT suspension system
- Trail-running vest-inspired design
- Ergonomic, stable and close-fitting carry
- Speed ski attachment
- Large mesh pockets on the shoulder straps
- Elasticated chest strap
- Integrated helmet carrier
- Zippered roll-top closure
- Rear zipper access to the main compartment
- Front compartment for avalanche safety equipment
- Hydration system compatible
- Removable front compression
- Front compression can be used as a hip belt
- Rope attachment on the flap
- PFC-free DWR treatment
- bluesign® PRODUCT
Technical specifications
- Capacity: 20-25 liters
- Weight: 740 g
- Height: 46 cm
- Width: 29 cm
- Depth: 18 cm
- Back length: size M, 46 cm
- Suspension system: CONTACT
- Main material: 100% polyamide
- Rain cover: not included
- Recommended activities: ski touring, mountaineering and mountain training
- Mammut product code: 2560-00172
