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Your outfit for a hike or a tour in the mountains is made up of different layers, materials and cuts - and each piece of fabric has its own special part to play.

  • You layer tops on top of each other using the onion principle:
    • Outdoor shirts: Being close to the body requires fast-drying fabrics. Outdoor shirts are therefore usually made of synthetic functional fabrics. Merino wool serves as an additional warming, yet functional option. The shirts regulate body temperature and wick moisture directly to the outside.
    • Outdoor hoodies: Comfortable. Warming. Resilient. Hoodies are an excellent versatile layer for your outdoor clothing. Versions with thumbholes additionally protect the backs of your hands, while hoods protect the back of your neck.
    • Outdoor waistcoats: When the weather turns cold, you want to protect your upper body from the cold. Outdoor waistcoats provide insulation where you would otherwise lose the most heat. At the same time, they allow freedom of movement and air circulation and protect you from moisture.
    • Outdoor jackets: The softshell variant is mainly intended to provide warmth when the wind picks up a bit. Thanks to special treatment, some models can also withstand light rain. You can protect yourself against intense showers with hardshell jackets, which often have breathable membranes that keep water out. Fleece jackets protect you from even more intense cold.
  • Outdoor trousers have a relaxed fit and offer freedom of movement. They are usually made of synthetic functional fabrics, and some also contain a little elastane for more mobility. For warmer temperatures, outdoor trousers can be converted into shorts by zipping them up. Of course, there are also short models. Both short and long outdoor trousers protect you from moisture and wind, and there are special hardshell trousers for particularly wet hikes.
  • Functional underwear: Outdoor vests and trousers fit almost like a second skin. However, thanks to functional fabrics, they regulate body temperature, wick moisture away from the body and insulate at the same time. The pants come with short, long or no sleeves at all, as well as shorts and long pants. All are elastic and quick-drying.
  • Outdoor socks: Socks prevent your hiking boots from rubbing against your legs. A good fit and high-quality material prevent blisters. The latter is usually made of synthetic fibres and/or merino wool and ensures a pleasant foot climate while hiking. Look for an optimal fit without wrinkles and slipping.


Simply setting out in jeans and a T-shirt with a jumper and leather jacket in your luggage quickly dulls the joy of an outdoor adventure. The advantages of outdoor clothing are simply too versatile:

  • Functionality: Even in cooler temperatures, the way up the mountain will make you sweat. If the wind starts blowing, you will cool down quickly. Thanks to functional fabrics specially designed for moisture transport, quick drying and cold insulation, outdoor apparel prevents just that.
  • Weather protection: Blue skies just a moment ago, then suddenly rain. Wind also comes along. With the help of waterproof membranes, premium outdoor clothing protects you from rain, cold and too much draught - without stimulating sweat production.
  • Durability: On the mountain or in the forest you can sometimes get caught on rocks, bushes or branches. Outdoor clothing is therefore made to be particularly robust so that it doesn't tear at the first touch.
  • Supports the body during outdoor activities: In nature, you need to be able to move freely at all times. That's why functional equipment is cut wide at crucial points without flapping around uncomfortably on the body. At the same time, compression underwear supports the muscles.


It's not just autumn or winter that brings surprises and cold. In the mountains, the weather doesn't need much advance notice to change from bright sunshine to downpours. You should therefore always have a jacket with you and also equip yourself according to the basic mood of the respective season:

Outdoor clothing for the winter

Outdoor clothing in winter should provide warmth as well as regulate moisture balance and body climate. Thermal fabrics and inserts provide additional warmth. It's best to use the onion principle, layering thinner layers. After all, you shouldn't start your winter hike overdressed. Water-repellent, windproof jackets with reflectors are always worthwhile. Underwear should be a little thicker than in summer.

Outdoor clothing for summer

Take a slightly warmer overjacket just to be on the safe side. Otherwise, your equipment should be breathable, transport moisture to the outside and cool the body. At the same time you save weight. A waterproof hardshell jacket is always worthwhile in view of possible rain showers.

Outdoor clothing for the transitional season

A windbreaker is the perfect way to combat a chilly breeze during the transitional months. The long-sleeved softshell protects you from the cold, while a hardshell with a waterproof membrane protects you from showers. Of course, you can layer functional underwear, shirts and softshells. You can also pack an outdoor waistcoat.


Freedom of movement is particularly important in nature. Your outdoor clothing should fit loosely, but not serve as a sail for the wind. It is important that you can move freely and that you are not restricted by tight-fitting fabric at the shoulders or hips. Also make sure that your functional outdoor apparel does not chafe anywhere.


Because it sits directly on the skin and absorbs more sweat, you should wash your functional underwear more often than your waistcoat or hardshell. At the same time, it's worth washing the latter regularly, despite the membrane and impregnation. This is because dirt particles can bind water, thus reducing the water-repellent qualities. If nothing else is stated on the label - you can always find out about the preferred washing method and temperature there - use the machine.

If there is a special programme for functional underwear, select it, set it to 30, maximum 40 degrees and spin it with a few revolutions. At the same time, don't fill the machine too full. For merino wool and softshell jackets, you should also use a special detergent. Basically, a functional detergent that is designed for gentle washing of membranes and functional fabrics is always suitable. Avoid washing powder and fabric softener.


Keller Sports equips you completely for your hikes, your excursions into nature. Softshell jackets. Shirts. Functional underwear. Hardshell trousers. In our outdoor shop you'll find exactly the outdoor clothing online that you need for your next excursions. For every weather condition. From the best brands. The Keller Sports outdoor range includes functional clothing and outdoor products from adidas Terrex, The North Face and Fjällräven, Dynafit, Mammut and Haglöfs. Patagonia, PYUA, Peak Performance, Schöffel and Salomon are also available in our outdoor shop - for both men and women. It's worth taking a good look. Especially since you can easily order online and find tempting offers in the outdoor sale.



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