Merino thermal undershirt – long sleeve

Origopro merino Thermal Underwear

Origopro’s merino thermal underwear is composed of two fibrous materials combined to complement each other. It features insulating merino wool against the skin and a Cordura® polyamide yarn surface to provide exceptional abrasion resistance.

The merino wool next to the skin is a soft, 19-micron strong wool from merino sheep, containing no artificial fibers. Cordura is widely used in high-durability applications, such as motorcycle apparel and workwear. The garment is constructed with Flatlock flat seams.

Wool can absorb moisture up to 40% of its own weight while still feeling dry. When binding moisture, wool releases heat to the skin without overheating, as the evaporation of moisture from the garment regulates the temperature. Merino wool is also naturally antibacterial, meaning airing it out is often enough instead of frequent washing.

User Reviews

• “The slippery Cordura surface helps when pulling on work overalls. Pleasant to wear underneath.”
• “The best thermal underwear I’ve ever owned.”
• “Incredibly good for jogging. I just wear shorts and use these thermal pants as leggings.”
• “Warm and soft underwear for winter fishing.”

Key Features

• Naturally Antibacterial: Merino wool contains lanolin, making it naturally antibacterial. Because of this, wool does not collect odors the way synthetic fibers do. Merino wool underwear does not need to be washed as often as synthetic alternatives; airing it out is often sufficient.

• Itch-Free Comfort: This underwear uses fine 19 $\mu$m merino wool fibers. The fine-fiber construction feels luxuriously soft and will not irritate even the most sensitive skin.

• Superior Warmth: The crimped structure of merino wool fibers creates microscopic air pockets that trap body heat much better than synthetic fibers, warming the skin more effectively.

• Moisture Management: Merino wool wicks moisture away from the skin. Even when damp, it continues to feel dry and warm.

• Elastic Knit: The elastic knit of the Origopro outfit ensures a comfortable fit that doesn’t restrict movement, even in extreme positions. The knit is both thick and warm.

• Well-Fitting Cut and Scandinavian Sizing: Designed specifically for Nordic users. The shirt features a long hem, while the pants and sleeves offer a comfortable, unrestricted fit. The high waist on the trousers provides excellent protection for the lower back.

• Flatlock Seams: The Flatlock seams are completely flat on both sides to prevent chafing.

Care Instructions

The product can be washed either by hand or in a washing machine using a dedicated wool program.