The Bergtagen Merino 190 is a technical merino baselayer designed for mountaineering, touring, and climbing. Made from 100% traceable wool, it provides breathable warmth and natural odor resistance. The lightweight fine jersey knit feels soft against the skin, with a slim fit that layers well under midlayers or shells. Moisture-wicking fabric keeps you dry and warm, while the longer back hem offers extra coverage under harnesses and packs. Wool insulates even when wet and maintains freshness over multiple days.