Thermal underwear

The Vilma pants are a 100% merino wool base layer with a simple snowflake motif that will keep you warm.

A popular series of thermal underwear inspired by the traditional Norwegian rose pattern in combination with high-quality material made of 100% merino wool.

Boxers from the popular series of thermal underwear inspired by the traditional Norwegian rose pattern in combination with high-quality material made of 100% merino wool.

Ideal for winter outings or when temperatures are very low, the new Seamless long-sleeve knitted base layer is designed to improve heat exchange to better regulate body temperature and keep you dry during exercise.

The seamless trail jersey offers an anatomical fit and unparalleled support. The seamless mesh made in Italy is exceptionally comfortable and provides optimal thermal regulation during your ultra trails and training sessions, regardless of the season.

AERO trail briefs: maximum comfort for exceptional performance.

The ultra-breathable trail running briefs are specially designed to meet the needs of the most demanding runners, offering a perfect balance between comfort, breathability and performance. Whether you're a trail-running enthusiast or a seasoned athlete, these briefs will become your essential ally in pushing your limits.

The lightest sports bra in the offer made of LightWool material 180g. It is stitched with two layers at the front for a better hold and one layer at the back for better ventilation and moisture removal.

Set of thermal underwear made of soft material that naturally regulates body temperature and dries quickly. The material effectively thermoregulates when you are active and wicks moisture away from the skin.

The Aclima Warmwool women's T-shirt is made of 100% merino wool with a weight of 200 g/m2 and a fiber thickness of 20.5 microns, making it ideal for colder days.

Aclima Warmwool women's underwear is made of fine merino wool for cold days. Warmwool women's underwear made of 100% merino wool with a weight of 200 g/m2 and a fiber thickness of 20.5 microns is soft, durable and extremely pleasant to the touch.

Devold® Duo Active is a two layer knitted fabric with a delicate merino wool on the outside and Thermocool ECO2 on the inside.

Aclima LightWool Women's Pants are soft, lightweight merino wool pants with an elasticated hem for the summer months, for everything from outdoor activities to everyday wear.

The Kari Traa Else Pant is a pair of 100% Merino wool women’s baselayer leggings inspired by our Norwegian heritage and knitting traditions.

Aclima DesignWool women's underpants are designer underpants made of merino wool with a pattern referring to Norwegian tradition.

Aclima Warmwool women's underwear is made of fine merino wool for cold days. Warmwool women's underwear made of 100% merino wool with a weight of 200 g/m2 and a fiber thickness of 20.5 microns is soft, durable and extremely pleasant to the touch.

The Kari Traa Stil is a super-lightweight women's performance baselayer with a bold KT logo and a racer-look panel construction.

The Kari Traa Stil is a super-lightweight women's performance baselayer with a bold KT logo and a racer-look panel construction.

Aclima LightWool women's boxer shorts are boxer shorts made of soft, light and comfortable merino wool, ideal for warmer days.

Unique thermal underwear made of merino wool with mesh panels. Ideal for medium to high intensity activities.

Multifunctional women's Aclima Warmwool sweatshirt with a unique 3-in-1 function, thanks to which you can choose between a round neckline, high collar or hood - all in one garment.

Multifunctional women's Aclima Warmwool sweatshirt with a unique 3-in-1 function, thanks to which you can choose between a round neckline, high collar or hood - all in one garment.

Devold® Duo Active is a two layer knitted fabric with a delicate merino wool on the outside and Thermocool ECO2 on the inside.

The Aclima Woolnet Hiking Women's T-Shirt is a unique merino wool thermal underwear with mesh panels, ideal for medium to high intensity activities.

Aclima LightWool women's panties are soft underwear made of 100% merino wool with an elastic edge for the summer months, for all activities - from outdoor activities to everyday wear.

FlexWool Sports Top has an optimal fit and comfort. Just like a well-known WoolNet construction, it has excellent ventilation and transports sweat from the body. The waistband has soft merino wool on the inside; wool dries quickly, but as is well known, warms even when wet.

The Aclima Woolnet Women's Short Sleeve T-Shirt is a wool mesh T-shirt with a full panel in the chest area, designed for high-intensity activities where moisture wicking, weight and ventilation are paramount, ensuring the best functionality.

Aclima WoolNet® is the original when it comes to wool net garments.

This collection unites quality, function and design in one. It isn’t by chance that the military has used Aclima WoolNet for years. From alpine touring during the winter, long mountain tours, Nordic skating, hunting, fishing and expeditions, WoolNet® is the natural first choice. WoolNet® can be combined with garments from the WarmWool series on cold days. The wool net is extremely fast drying and comfortably stretchy. The garment is rib-knitted on exposed areas for best comfort and durability.

Aclima WoolNet® is the original in wool mesh clothing. It is designed for high-intensity activities where moisture wicking, weight and ventilation are paramount, ensuring the best functionality.

Unique merino thermal underwear with mesh panels. Ideal for medium to high intensity activities.

Medium to high-level activities where extra insulation is needed, like hikes, cross-country skiing, hunting and summit hikes.

Aclima Woolnet women's underwear made of wool mesh is designed for high-intensity activities where moisture wicking, weight of clothing and ventilation are most important, ensuring the best functionality.

Aclima Woolnet 100% merino wool t-shirt ideal for alpine skiing, skiing, hiking or running.

Aclima HotWool is made from terry wool, and is our warmest woolen underwear.