Men's long trousers from our Merino thermal underwear collection are a great functional piece for all conditions. You can use them all year round for everyday wear and for various outdoor activities in nature. Merino is a natural thermal material made from sheep wool. It is also suitable for allergy sufferers and has a lot of great features. Maintains body temperature. In winter, it warms, in summer it cools slightly. It is perfectly breathable. It perfectly wicks moisture away from the body, while thanks to the fiber structure it does not change the insulating properties, so even wet does not get cold. The natural antibacterial property eliminates odor. Please note that Merino is a natural material, the natural phenomenon of which is pilling, which therefore cannot be a reason for later product complaint.