How to choose the right thermals

Want warmth and comfort, minus the bulk? It’s time to invest in some clever engineering and highly advanced technology — with your underwear.

When it comes to thermal underwear we’ve got you covered. Baselayers have unique features to help you keep warm and get the most out of your activities — whether you're travelling, skiing or curled up for the afternoon.

The following guide will get you started but always consider your individual use, activity and the other layers you're going to wear.

Thermals for everyday winter adventures


If your main aim is to hibernate and stay as cosy as possible, KMDCore thermals will do the trick.

Key benefit: Warmth

How do they work?

KMDCore thermals are made from polypropene (otherwise known as polypro) which consists of hollow fibres that work by trapping air in between themselves. This acts as a layer of insulation to provide you with outstanding warmth.

Unlike wool, the fibres in polypro don’t absorb moisture. They wick moisture away from your skin. They're also lightweight and quick to dry — ideal when on the winter washing line.

Best baselayer for: Everyday layering, camping and snoozing on the couch

Thermals to keep you moving

Image of a Men's KMDMotion baselayerImage of a Men's KMDMotion baselayer

Never want to get out of your long johns? KMDMotion are ideal all-season thermals — they'll keep you warm, dry and smelling good — with a full range of movement to boot.

Key benefits: Warmth and dryness

How do they work?

KMDMotion baselayers are made from a lightweight jersey knit and have a natural, soft feel for that next-to-skin comfort. They've been especially engineered for freedom of movement so you can scramble, stretch, and high-kick all year round.

They also feature permanent antimicrobial protection — that is, it’ll keep your body odour in check. You’ll smell nicer, for longer.

Best baselayer for: Travel, camping and cold weather hiking

Thermals for outdoor activities


Heading off to the ski fields? KMDAscent thermals are the perfect baselayers for outdoor activities in cool conditions.

Key benefits: Warmth, dryness and odour resistance

How do they work?

We’ve blended synthetics and merino to create exceptionally warm yet breathable baselayers for changing mountain environments.

Merino's naturally odour resistant, but the inclusion of Polygiene will help keep you fresher for longer. It’s lightweight too, making it an excellent choice when you’re going to work up a sweat.

Best baselayer for: Alpine sports, cold weather hiking and mountaineering

When choosing the right thermals, consider your own comfort, what you want your thermals to do and how versatile they’ll be in the long run.

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