This unique two-layer women's union suit with its Wool Plus outer layer and soft, itch-free cotton liner delivers all-day warmth and comfort without any added bulk. Outside layer: "Wool Plus," 50% cotton/40% merino wool/10% nylon. Inside layer: soft and absorbent itch-free 100% cotton. Cuffs: 48% cotton/38% wool/9% nylon/5% spandex. Machine wash seperately and dry. posh ambassador smoke/pet free home.