Collection: Thermal underwear

Men's thermal underwear from Undiemeister

The cold days are coming. You're looking for protection, warmth, underwear that cooperates rather than holds back. No thick layers, no clammy fabrics, no compromising on style. Thermo underwear men from Undiemeister is designed for just that: intelligent comfort. Technically advanced, naturally breathable and made to perform, under any garment and in any situation.

Warmth where you need it, freedom of movement where you count on it. Check out the underwear at Undiemeister!

What is thermo underwear?

Our thermal underwear is TENCEL™ underwear that retains body heat while wicking away sweat and moisture. It's ideal for:

• Winter days
• Outdoor activities
• Winter sports
• Working in the cold
• Or just... comfort inside

The perfect combination of insulation and ventilation, without overheating or stickiness.

Why Undiemeister thermal underwear men is smarter

1. Warmth from the inside out, thanks to Mellowood

Unlike synthetic thermal shirts or leggings that seal the skin, our patented Mellowood underwear provides a breathable heat buffer.

Composition:

• 68% TENCEL™ Modal
• 28% Organic cotton
• 4% Elastane

Benefits:

• Naturally insulating
• Breathable and moisture regulating
• Odor inhibiting and antibacterial
• Silky soft for long-lasting comfort
• Form-fitting, even after intensive wear

Thermo performance, wrapped in premium wearing experience.

2. Slim fit that moves with you

Whether you're hiking, biking, working or exercising:

• The underwear fits tightly without pinching
• Follows your body without adding volume
• Fits under any outfit, from tailored suit to ski suit

Ideal as a first layer. Invisible, feel better.

3. Maximum seamless and label-free = no irritation, no friction

• No chafing seams
• No itchy labels
• No thick edges

You move, your durable underwear moves with you, without friction.

4. Made in Europe, sustainable and carbon neutral

Keeping your body warm shouldn't come at the expense of the planet. That's why our men's thermal underwear is:

• CO₂-neutrally produced
• Fairly made in Europe
• Made with sustainable fibers and processes
• Packaged in recyclable materials

Warm inside, cold on the impact meter.

Thermo underwear vs traditional underwear

Smart thermal underwear recognizes your body and supports it.

Warm without overheating

Our fibers are:

• Lightweight but warm
• Moisture regulating without feeling clammy
• Fast drying and airy

Ideal for changing conditions such as exercising in the cold, commuting in winter or long working days outside.

Timeless, functional, invisible

Thermo doesn't have to be visible to be effective. That's why our style is:

• Minimalist
• Inconspicuous under any outfit
• In understated colors like Volcano Ash, Storm Cloud & Lava Rock
• With no visible branding or busy prints

Functional, stylish and discreet.

Smart bundling = smart preparation

Winter calls for stock. Our Meisterdeals:

• Give up to 30% off
• Make layering possible without double washing
• Keep your closet smartly stocked
• Reduce packaging waste

One order, days of warmth without worry.

Order today, thermal underwear that keeps heat smart

• Slim fit
• Breathable and odor resistant
• Made from Mellowood
• Maximum seamless and label free
• CO₂-neutrally produced in Europe
• Durable, stylish and performance-oriented

Order today, choose your bundle and brave the cold with comfort and class.

Finally, warmth you don't see but do feel

Thermo underwear men from Undiemeister is not an extra layer. It is a smart base. For men who choose comfort without compromise, warmth with vision.

Not thermal clothing. A masterpiece for cold days.