Stanfield's Men's Pure Merino Base Layer LeggingMerino wool works with your body, insulating you from the elements. Merino wool is a natural and renewable fiber. The fiber is renowned for its fineness, making it ideal for next to skin layering. Because of the unique structure of the Merino fiber, fabrics made from Merino wool have many inherent performance traits. Wool is: thermo regulating through moisture management, odour resistant, extensible, breathable, and machine washable. This product is