Cold days on the ski hill, blustery dog walks and spring camping: things that are all made better by the Merino 150 Base Layer Bottoms. Featuring Core Spun technology, we've wrapped Merino around a nylon core for added durability while still keeping the temperature regulation and moisture management benefits of ultra-soft Merino next to skin. A wide waistband and smooth stitching up the comfort factor on these year-round favorites.