Teenage Mutant Ninja Turtles Costume Leonardo TMNT Kids Cosplay Costume Medium Teenage Mutant Ninja Turtles Costume TMNT Halloween Costume for Kids with Muscle Bodysuit, Mask, Shell, Belt/Sash Knee and Elbow Pads, Sash. I do not have the original packaging. Nickelodeon Crenstone Exclusive Teenage Mutant Ninja Turtles Costume with Muscle Bodysuit, Mask, Shell, Elbow and Knee Pads. This Teenage Mutant Ninja Turtles costume is perfect for your little one to dress up as their favorite character, Leonardo! 100% Polyester. I purchased this second hand. Upon research it was made in sizes 4-6 and 12-14. This one simply says, Medium? It fit and still fits my son who is 4’3” and about 65lbs. He is currently a size 8 and this fits him perfectly. There is a couple little snags to the bodysuit due to the velcro straps from the knee, shoulder and belt/sash and my son wearing it. I did wash this so it is clean and ready to wear.