The women's turtleneck turtleneck with a zipper from our Merino thermal underwear collection is a great functional piece for all conditions. You can use it all year round for everyday wear and for various outdoor activities in nature. Merino is a natural thermal material made from sheep's wool. It is also suitable for allergy sufferers and has a lot of great properties: It maintains body temperature. It warms up in winter, cools slightly in summer. It is perfectly breathable. It perfectly wicks moisture away from the body, while thanks to the structure of the fiber, it does not change the insulating properties, so even when wet, it does not get cold. The natural antibacterial property eliminates odors. Main advantages: Flat seams Zipper overlay at the chin Anatomically shaped cut Raglan sleeve cut Underarm inserts for maximum comfort Please note that Merino is a natural material whose completely natural phenomenon is pilling, which therefore cannot be a reason for a later complaint about the product.