Transform your little boy into his favorite superhero with this Batman themed 2-piece thermal underwear set from Cuddl Duds. Made of comfortable and stretchy polyester material, this set in size MEDIUM will keep your kid warm and cozy during all seasons. The set includes a top and bottom with moisture-wicking and tagless features, making it machine washable for easy maintenance. Featuring a black color and a novelty/cartoon pattern, this thermal set is perfect for young fans of the Dark Knight. Suitable for regular use and machine washable, this Batman Boys 2 Pc Poly Thermal Underwear in size Medium 8/10 is a fun and practical addition to your little one's wardrobe.