Mammut DRY Expedition
Our breathable, waterproof hardshell technology, offering abrasion-resistant protection for ambitious mountain tours.
Mammut DRY Expedition is your abrasion-resistant, protective outer layer, made for extreme conditions and challenging alpine expeditions. Designed in the Swiss Alps and tried and tested by athletes: this hardshell technology has been developed to tackle the challenges of high alpine terrain. Using resourceful materials, from recycled fabrics to PFC-free membranes and DWRs, it guarantees peak performance.Â
The benefits 
Reliably waterproof 
From the lab to the mountains – our hardshells have undergone intensive testing to ensure 100% protection. 
Ultra-breathable
Moisture is transported away to optimally regulate your body temperature.
Incredibly durable
Your hardshell is made for high alpine tours and withstands intense rock contact without any problems.
Designed for
Designed for
Details 
- Water column
> 20.000 mm
- Breathability
> 20.000 g/m²/24h
- Material
recycled polyamide, at least 40 denier
- Testing method
storm test (lab), field test
Styles with Mammut DRY ExpeditionÂ
“Built for the most extreme conditions, Mammut Dry Expedition combines uncompromised storm protection with class-leading durability. It will keep you dry in the world’s harshest environments for hours.”
How the technology worksÂ
Hardshells with Mammut DRY Expedition are typically composed of three layers, joined together to form a laminate. On the outside is the durable, abrasion-resistant face fabric with a DWR ↗ (Durable Water Repellent) coating. The centrepiece in the middle is the membrane. This is what makes your hardshell waterproof, and allows it to efficiently transport sweat to the outside. The backer protects the membrane from chafing and enhances overall comfort.Â
 Hardshells with fewer layers swap out the inner layer. Double-layer hardshells replace it with either a loose mesh or insulation on the inside, while 2.5-layer hardshells add a thin print to protect the membrane, making the style even lighter, more breathable and easier to pack down small.Â
Compare Mammut DRY Expedition
Water column
Breathability
DRY Expedition
DRY Active
DRY Tour
