Nickelodeon Little Boys' Teenage Mutant Ninja Turtle Thermal Underwear Set green These are Nickelodeon brand Teenage Mutant Ninja Turtle thermal underwear for boys This thermal underwear set has a long sleeved top with pant bottoms The top is printed with an action scene of the fighting TMNT warriors and the words TURTLE POWER These thermal underwear have green jersey knit fabric at the arm and leg cuffs and along the neckline The fabric is a cotton polyester blend that is machine washable and cozy to wear