Quick-Drying Merino Functional Underwear for Men and Women

High-quality merino functional underwear is ideal for sweat-inducing sports. The natural fibers effectively absorb moisture and thus offer a quick-drying effect even during intense physical activity.

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Eine Person steht barfuß, mit dem Gesicht nach außen, in dunkler langärmeliger NAKED Optics Merino Unterwäsche und passenden Leggings auf weißem Grund.

Clothing

Thermal-Underwear Men (100% Merino)

2 Pants Lengths + 4 Sizes

£84.99 GBP

Eine Person, die ein schwarzes NAKED Optics Funktionswäsche Damen langärmliges Oberteil und eine abgeschnittene Leggings aus weicher Merinowolle trägt, steht barfuß und mit dem Gesicht nach außen.

Clothing

Thermal-Underwear Women (100% Merino)

2 Pants Lengths + 4 Sizes

£84.99 GBP

Ein bärtiger Mann im weißen Hemd trägt eine graue 5-Panel NAKED Optics Cap und blickt nach links vor einem schlichten Hintergrund - ideal für Fans von Baumwoll Caps oder stilvollen NAKED Optics Accessoires.

Beanies/Caps

Cap 5-Panel

2 Colors

£24.99 GBP

New Product

Eyewear

The ICON

2 Colors

£39.99 GBP

New Product

Clothing

Longsleeve Shirt - Apres

5 Größes

£29.99 GBP

Why Merino Base Layers deliver maximum performance

Our Merino base layers make the most of the natural properties of merino wool. The fine merino fibers regulate body temperature and ensure optimal moisture management. Thanks to the odor-resistant and antibacterial properties, merino wool clothing stays fresh even during multi-day use. In addition, the high-quality wool does not itch, is extremely easy to care for and provides a lightweight, comfortable feel against the skin.

Sustainability in focus: Our merino wool comes from 100% responsibly managed farms and is guaranteed mulesing-free. Maximum comfort with a clear conscience.

Perfect fit: Who are Merino base layers suitable for?

Whether you're hiking, running or enjoying everyday winter activities, natural thermal underwear adapts perfectly to your needs:

Merino base layers for men

Merino base layers for men offer maximum freedom of movement during demanding sports activities. They provide an ergonomic fit, support body temperature regulation and help prevent cooling down during breaks.

Merino base layers for women

Our Merino base layers for women combine feminine cuts with full functionality. They fit comfortably against the body without constricting and provide a dry, comfortable feeling even during changing activity levels.

Eine junge Frau zieht sich zum Skifahren an. Sie hebt den Träger ihrer Skihose über ihre Funktionswäsche; Credits: Elias Neier

The benefits of 100% pure merino wool base layers

For our base layers, we deliberately rely on 100% pure merino wool without artificial additives. This gives you unbeatable advantages during sports and in everyday life:

Maximum odor neutrality: Pure merino wool has natural self-cleaning properties. Bacteria can hardly settle on the fibers. For you, this means: even after demanding tours, the clothing does not smell unpleasant.
Unique microclimate: Whether in freezing cold or during a sweaty ascent, the pure natural fiber provides excellent insulation against the cold while also cooling you down in heat by effectively wicking moisture away from the body.
Pure comfort directly on the skin: No synthetic fibers that scratch or build up static. Our 100% merino wool feels extremely soft and natural

Ready for the slopes: Merino ski base layers

Whether you're snowboarding or skiing, our merino ski base layers keep you reliably warm without overheating. The fine fibers feel pleasantly soft against the skin and provide maximum comfort with unrestricted freedom of movement. Thanks to the natural insulation properties, your body stays comfortably warm even in sub-zero temperatures.

Merino base layers are the perfect choice for winter sports enthusiasts who value functionality and comfort. Our tip for especially cold days on the slopes: combine your ski base layers with matching merino wool ski socks.

The Most Important Questions About Merino Functional Underwear

Why is Merino wool so well suited for sportswear?

Merino wool combines several positive properties. It keeps you warm while being breathable at the same time. This way, your clothing stays dry even during intense activities.

You can find more information about Merino wool here.

Is Merino functional underwear available in different lengths?

Yes, our Merino thermal underwear is available for both women and men in 4 different sizes, with the option of full-length pants or ¾-length versions.

How should I wash my Merino ski underwear?

Thermal underwear made of Merino wool for men and women is very easy to care for, but there are a few things to keep in mind. Wash the functional underwear at 30°C on a gentle cycle and let it air dry. Merino functional underwear must never be put in the dryer.