The layering system
The layering principle is the smart solution for every outdoor activity. Simply add or remove layers depending on your level of physical exertion or the weather. This allows you to react flexibly to changing conditions and regulate your body climate. The basics of layering:
![A Mammut-clad skier in vibrant green gear stands confidently on a snowy mountain slope, gripping poles and gazing at the majestic snow-covered peaks in the background.](/_next/image?url=https%3A%2F%2Fimages.ctfassets.net%2Fl595fda2nfqd%2F2UnL37z112hJLdwkU0IJP2%2F23f0846ba6207dfed03d9f712af8437a%2FSkiing_FW23_Verbier_005__1_.jpg&w=4096&q=85)
Outer layer
The outer layer protects you from wind and rain. A hard shell jacket should be waterproof and windproof. Breathable materials wick moisture to the outside when you start to sweat during strenuous activities.
Outer layer
![Person in orange Mammut jacket and black beanie standing with arms wide open on snowy mountain, wearing sunglasses.](/_next/image?url=https%3A%2F%2Fimages.ctfassets.net%2Fl595fda2nfqd%2F28iNkh1o9wzJVI4sad7GUa%2F99546e1bef94e0eb845257bf132bc931%2FSkiing_FW23_BerneseAlps_Commercial_020.jpg&w=4096&q=85)
Midlayer
The middle layer stores body heat when you start to cool down. A mid-layer or an insulating jacket should be lightweight, compressible, and dry quickly.
Midlayer
![Person wearing a Mammut headlamp and hoodie, holding a warm drink, illuminated in the dark with a cozy, content expression.](/_next/image?url=https%3A%2F%2Fimages.ctfassets.net%2Fl595fda2nfqd%2F1s3zIrFzKHBLTpVuNTBE64%2F0fdb2fb76b28698df8196f17c7c50201%2FHiking_SS23_Kandersteg_016.jpg&w=4096&q=85)
First layer
The first layer is in direct contact with the skin. Look out for functional textiles that wick sweat away from the body. They should dry quickly to prevent you from chilling as well as being skin-friendly and odor-inhibiting.