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Underwear

Men's Merino Xtreme Thermal Shirt (80% Merino)

Item No. 12XTRM411-990-S

Regular price CHF 83.95
incl. VAT
✓ Free shipping from CHF 100.–
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PRODUCT DETAILS

All about Men's Merino Xtreme Thermal Shirt (80% Merino)

Merino Xtreme is Thermowave's most popular collection, designed to impress you with its comfort, functionality, and durability. The Thermowave Merino Xtreme thermal shirt for men features a dual-layer construction: merino wool and polyamide as the outer layer retain heat, allow the skin to breathe, and prevent unpleasant odors, while polyester as the inner layer absorbs moisture and allows it to evaporate quickly, even in the coldest conditions and regardless of your activity level.

These ultra-soft, skin-friendly products provide your body with comfort, dryness, and warmth, even during the most unexpected adventures.

Features
- Fit: Next to skin
- Dual-layer - merino wool and polyamide as the outer layer, functional polyester as the inner layer
- Extended back protects against the cold
- Close-fitting collar for maximum comfort and warmth
- Flat seams prevent skin irritation
- Ultra-soft and gentle fabric feel
- Retains heat
- Does not restrict freedom of movement
- Allows the skin to breathe
- Natural antibacterial protection against unpleasant odors

Material: 80% merino wool and 20% polyamide (outer layer), 100% functional polyester (inner layer).
Fabric density: 220 g/m²
Color: black/ grey melange
The model in the video is 189 cm tall and is wearing size M.

MerinoDry Technology
MerinoDry technology ensures you feel fresh, dry, and warm for longer. We have developed a double layer with functional polyester on the inside and natural merino wool on the outside, which provides better breathability and extra warmth. Functional polyester quickly wicks away excess moisture, and merino wool is known not only for its warmth but also for its natural antibacterial properties that protect against bad odors.

Sustainability
Merino wool acts like a personal climate control system for the body, maintaining a stable temperature: it keeps the body cool when it's hot and warm when it's cold. It is eco-friendly because merino comes from the best that nature has to offer - water, fresh air, sunlight, and grass. Merino wool grows back annually, is 100% biodegradable, and always delivers the best performance. Forget unnecessary moisture, dampness, and itching, as this is the softest and most breathable clothing you will ever find. Every Thermowave garment is made from mulesing-free merino wool. We are very proud of this decision and know that the welfare of the sheep improves as more and more manufacturers follow this path. We have a saying that happy sheep don't itch, and we stand by it. Recycled polyester is the ideal sustainable choice - recycled fabrics require fewer resources while retaining the excellent properties of the fiber. Recycled polyester ensures lasting comfort and minimal thickness, offers exceptional moisture-wicking, and moves freely with you, even during the most demanding activities.

Care instructions
Wash on a wool cycle at a maximum water temperature of 30o C.
Wash with garments of the same color.
Turn the garment inside out before washing.
Use wool detergent, do not use fabric softener.
Bleaching is prohibited.
Tumble drying is prohibited.
Reshape the underwear after washing.
Iron at temperatures up to 110o C.

Size chart

Size Chest Sleeve length
S 92 cm  76 cm 
M 100 cm  78 cm
L 106 cm  80 cm
XL 111 cm  82 cm 
XXL 119 cm  84 cm 
3XL 125 cm  86 cm 




Description

Merino Xtreme is Thermowave's most popular collection, designed to impress you with its comfort, functionality, and durability. The Thermowave Merino Xtreme thermal shirt for men features a dual-layer construction: merino wool and polyamide as the outer layer retain heat, allow the skin to breathe, and prevent unpleasant odors, while polyester as the inner layer absorbs moisture and allows it to evaporate quickly, even in the coldest conditions and regardless of your activity level.

These ultra-soft, skin-friendly products provide your body with comfort, dryness, and warmth, even during the most unexpected adventures.

Features
- Fit: Next to skin
- Dual-layer - merino wool and polyamide as the outer layer, functional polyester as the inner layer
- Extended back protects against the cold
- Close-fitting collar for maximum comfort and warmth
- Flat seams prevent skin irritation
- Ultra-soft and gentle fabric feel
- Retains heat
- Does not restrict freedom of movement
- Allows the skin to breathe
- Natural antibacterial protection against unpleasant odors

Material: 80% merino wool and 20% polyamide (outer layer), 100% functional polyester (inner layer).
Fabric density: 220 g/m²
Color: black/ grey melange
The model in the video is 189 cm tall and is wearing size M.

MerinoDry Technology
MerinoDry technology ensures you feel fresh, dry, and warm for longer. We have developed a double layer with functional polyester on the inside and natural merino wool on the outside, which provides better breathability and extra warmth. Functional polyester quickly wicks away excess moisture, and merino wool is known not only for its warmth but also for its natural antibacterial properties that protect against bad odors.

Sustainability
Merino wool acts like a personal climate control system for the body, maintaining a stable temperature: it keeps the body cool when it's hot and warm when it's cold. It is eco-friendly because merino comes from the best that nature has to offer - water, fresh air, sunlight, and grass. Merino wool grows back annually, is 100% biodegradable, and always delivers the best performance. Forget unnecessary moisture, dampness, and itching, as this is the softest and most breathable clothing you will ever find. Every Thermowave garment is made from mulesing-free merino wool. We are very proud of this decision and know that the welfare of the sheep improves as more and more manufacturers follow this path. We have a saying that happy sheep don't itch, and we stand by it. Recycled polyester is the ideal sustainable choice - recycled fabrics require fewer resources while retaining the excellent properties of the fiber. Recycled polyester ensures lasting comfort and minimal thickness, offers exceptional moisture-wicking, and moves freely with you, even during the most demanding activities.

Care instructions
Wash on a wool cycle at a maximum water temperature of 30o C.
Wash with garments of the same color.
Turn the garment inside out before washing.
Use wool detergent, do not use fabric softener.
Bleaching is prohibited.
Tumble drying is prohibited.
Reshape the underwear after washing.
Iron at temperatures up to 110o C.

Size chart

Size Chest Sleeve length
S 92 cm  76 cm 
M 100 cm  78 cm
L 106 cm  80 cm
XL 111 cm  82 cm 
XXL 119 cm  84 cm 
3XL 125 cm  86 cm 




Delivery & returns
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Shipped from our Swiss warehouse. Free shipping on orders over CHF 100.-

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Dog Tags

Your own dog tags

One or even two embossed tags on a ball chain — your lines, stamped by us in Rüthi and included with your order.

from CHF 9.95 incl. engraving

Engraving included Minted directly on our premises Original US Army