Nickelodeon Teenage Mutant Ninja Turtles Halloween costume size 3-6 months or 6-9 months. (Pick the size you want) This adorable outfit features a 60% Cotton/40% Polyester blend, ensuring a comfortable fit for your little one. The cute turtle cape is detachable and the outfit has a zippered closure on the front for easy diaper changing. This adorable costume is sure to make your baby the cutest ninja turtle this Halloween.