Devold Duo Active Merino 205 LS double-sided thermal T-shirt for men - double-sided Merino wool base layer. The base layer is developed for high-intensity activities where the need for insulation and the ability to regulate body temperature are important. This highly functional t-shirt dries quickly and wicks excess heat and moisture away from the body. Rib Knit - elastic ribbed knit, light with high insulating ability, absorbs moisture during activity. * outer material: 99% wool (Merino), 1% elastane * weight: 250 g/2, fine wool - 18.7 microns * flat surface offers effective moisture removal and high breathability * properties of Merino: animal origin, soft to the touch, non-scratching, provides comfort and functionality, natural body temperature regulation, high absorbency and breathability, UV protection * 3D fabric construction with knitted air channels creates additional insulation * strategically placed wool mesh on the back panel, under the arm and behind the elbow * elastic insulation ribbed knit, light and soft, has been incorporated to absorb moisture and keep you dry during activity * base layer wide merino wool waist, provides a comfortable fit and optimal shape * extended sleeves with thumb holes * elastic hood with high collar ( balaclava) * flat seams for optimal comfort * extended back panel * pleasant soft functional material * Eco friendly product * double-sided design * thermal underwear