Men thermal underwear

Men's Thermal Underwear – Dry and Warm at Any Effort

Men's thermal underwear is cut for the male body: broader shoulders, a longer torso and a comfortable fit at the hips. A close-fitting base layer wicks sweat on the climb and keeps you warm during breaks, on the lift or outdoors while hunting and fishing.

In this category you will find men's thermal underwear by Sensor (Czech Republic), Kilpi (Czech Republic), Husky (Czech Republic), Campo (Greece) and the Bulgarian manufacturer Bars: long- and short-sleeve tops, leggings and full sets.

How to Choose Men's Thermal Underwear

• By activity: for skiing, snowboarding and winter hiking choose a medium weight, for hunting, fishing and static activities a heavier model, and for running and cycling a thin, quick-drying one.
• By fabric: synthetics are durable and dry quickly, while merino wool stays warm when damp and does not hold odours.
• Set or separate: a top and leggings set is the best-value option for skiing and winter. Separate pieces let you combine different weights.
• Details: flat seams, a longer back and anatomical zones with better ventilation make it comfortable to wear all day.

Which Base Layer for Which Activity

A Complete Winter Outfit

Over your base layer, wear a fleece as a mid layer and a ski jacket or hiking jacket on top. For your feet, add ski socks or hiking socks in a similar fabric. If you want maximum warmth for minimal weight, browse our merino thermal underwear.

Why Choose Extreme Sport

We have been equipping skiers, hikers and hunters for over 22 years and are the official importer of Kilpi and Husky for Bulgaria. Try the base layers on at our store at 42 Dondukov Blvd in Sofia, or order online with free delivery to an office or parcel locker over 50 EUR and 30 days for returns.

Frequently Asked Questions

What size men's thermal underwear should I choose?
Choose by chest and hip measurements from the size chart of the specific brand. Thermal underwear should fit snugly but not feel tight when you squat or raise your arms.

Can thermal tops be worn on their own?
Heavier tops with a modern cut can be worn on their own for hiking and sport in milder weather. Leggings are usually worn under trousers.

How many sets do I need for a ski holiday?
For a week of skiing, two sets are enough: while one is washed and dried, you wear the other. With merino, one is often enough because it does not hold odours.

How should I care for thermal underwear?
Wash at 30–40 °C (merino on a wool cycle up to 30 °C), without fabric softener or bleach. Do not dry on a radiator and do not iron.