The Smartwool Women's Merino 250 Base Layer Bottom is a high-performance base layer for cold weather activities. Made from 100% Merino wool, these bottoms provide excellent insulation and moisture-wicking properties. The flatlock seams and wide waistband ensure a comfortable and chafe-free fit. The natural odor resistance of Merino wool keeps you feeling fresh even after long hours of wear. Whether you're skiing, snowboarding, or hiking, these bottoms are a reliable and durable choice. With their excellent quality and performance, it's no wonder they are a best seller on Amazon.