CLOSEOUTS. From SmartWooland#39;s NTS (Next to Skin) collection, SmartWooland#39;s NTS 250 Color-Block base layer top is made from itch-free merino wool that delivers performance-minded comfort. The midweight design features long sleeves and a classic crew neck that are ideal for cold-weather layering. Available Colors: BLACK, OLIVE HEATHER/BLACK, DEEP NAVY/DARK STEEL BLUE HEATHER, TAUPE HEATHER. Sizes: S, M, L, XL, 2XL.