You can buy a wide range of thermals like thermal tops, thermal underwear, thermal pants, etc., at low prices. Nautica operates over 290 stores internationally. The brand now also offers its exclusive home-decor collection to customers. Under its Home Decor collection, the brand sells bed sheets, pillows, towels, etc. Confused about what color Thermal to wear? The most selling Women Thermal are Gray, Black, White, Red and Navy Blue.