DetailsLasting Size Chart Women's thick, extra insulating, seamless base layer underpants. They are made from super fine 16 micron sustainable sourced Australian merino wool, therefore they will never itch or scratch and feel extremely comfortable next to the skin. The outstanding antibacterial properties of Merino wool guarantee that the garment remains free of odor, even after it is worn for a long time and can therefore go longer in between washes. Merino has excellent moisture wicking properties. It has a matching top (product id. WERELA). Material: 80% merino wool, 17% polypropylene, 3% spandex.