Warm and breathable, these are the two basic attributes of the men's Bergen top, which combines only the best natural materials. One material is the popular merino wool obtained from a special merino sheep breed. This material excels not only in its breathability, but also in its antibacterial properties and ability to delay heat loss for the wearer, keeping you at ease no matter the weather or activity you expose it to. The bottom part of this “sandwich construction” is bamboo – this material has almost the same properties as merino, but it’s very pleasant to the touch and, unlike merino, it doesn’t tend to scratch, making this top even more comfortable to wear. This model of our merino Bergen T-shirt comes with a zipper under the neck and sleeves and holes for thumbs, so you can better customize how you wear it.