The Terramar Women's Thermasilk Base Layer Bottom is a popular choice for those looking for a lightweight and silky base layer. Made from 100% pure silk, these base layer bottoms provide excellent insulation and moisture-wicking properties. The fabric is incredibly soft and smooth against the skin, making it comfortable to wear all day long. The Thermasilk Base Layer Bottoms have an elastic waistband for a secure fit and are designed to be worn under other layers. Whether you're skiing, hiking, or just need an extra layer of warmth, these base layer bottoms are a great option.