The voucher code has been copied to the clipboard.


Renowned manufacturers not only offer the dedicated sportswoman high-quality functional underwear for women, but also fashionable highlights in trendy colours and purist beauties. Discover the new generations of functional underwear for women at Keller Sports and get into top form. Functional underwear is like a second skin and there are suitable models for all climatic conditions. Women's functional underwear creates optimal conditions for your body when running, hiking, skiing, biking or training in the gym. It is an important component in your individual clothing concept. Depending on the season and how you feel about your body, you can choose between fashionable long-sleeves, short-sleeved shirts and functional pants.


Modern functional underwear for women is now designed differently than it was years ago. The focus is no longer on transporting sweat away quickly. If the sweat is drawn away from the body too quickly, the cooling function is lost. It's like a ping-pong effect. The rapid removal of sweat opens the pores and increases sweat production. The heavy loss of fluid can lead to overheating.

Sweating is an important bodily function. When you sweat, your body's own air conditioning system switches on and cools your body. However, if the sweat cannot be wicked away, you end up with a sticky wet shirt. This often leads to an uncomfortable feeling and, in cool outdoor temperatures, even to a cold.

The new generation of functional underwear for women is a multi-tasking product. It cools you during sweaty activities and warms you in cool temperatures. However, the full effect of functional underwear can only be achieved if it fits closely to the body.


You have the choice between different affordable functional underwear for women for every outdoor activity in summer, the transitional season or in winter. Most underwear is made of a mix of materials. Each fibre has special properties that only become high-quality functional underwear when combined with other materials.

Polyamide is a thermoplastic synthetic material. The material is highly resistant to wear and abrasion and is therefore ideal for sportswear. Polyester belongs to the group of polymers and is mainly known in the clothing industry as synthetic microfibre. This synthetic fibre is hard-wearing and easy to care for. Lyocell is also an industrially manufactured fibre made of cellulose. It has a high wet and dry strength and absorbs moisture perfectly.

Spandex is also a chemical fibre and is always processed with other materials such as polyester, polyamide, viscose or cotton. Spandex makes every material combination stretchy and still ensures shape retention.

Merino wool is a natural fibre, has insulating properties and is breathable at the same time. It cools in summer and warms in winter. Merino wool protects against UV rays and repels dirt. The fibres absorb and wick away up to 35% of their own weight in moisture.


Women's functional underwear is the perfect baselayer for your outdoor sportswear. Depending on the material used, you can wear them in summer or winter. You will find the right functional underwear for women in the Keller Sports online shop:

  • Optimal moisture regulation
  • High breathability
  • Odour-neutralising
  • Cuddly and elastic
  • No irritating seams


What you find at Keller Sports as functional underwear for women in the tops can often even be worn solo as a shirt. The designs look sporty and simple but are still fashionably on the fast lane. The pants with high climate comfort are available as trendy pants, briefs or long trousers. When it gets colder while running, biking or on the ski slopes, long pants made from pure merino wool will keep you warm. Experience a completely new wearing sensation with the intelligent functional underwear for women.



Register for the newsletter now, get a £10 voucher* and receive regular emails from us offering you exclusive deals and pre-sales.

First name (optional)
Surname (optional)

Thank you!

Please activate your subscription by clicking the link in the email we have just sent you.