The BASE TIGHTS are the perfect first layer for cold days in the mountains. The body-hugging fit adapts pleasantly, while the material ensures optimal temperature regulation - without itching. As a functional base trouser, it is ideal for winter sports, ski hikes, or walks. as a sustainable alternativebiodegradable base layer without microplastics and CO2 reduction0% microplastics, 100% biodegradableIdeal to combine with BASE LSBringing together all the benefits of merino wool with those of logically biodegradable synthetic base layer PrimaLoft® ™ PrimaLoft® ™Fit: slim fit / tight / fitted