This Birthday Ninja 9th birthday design is perfect for a 9 year old ninja birthday party theme for boys or girls. Features Japanese symbol for Ninjutsu with cartoon ninja karate kick the birthday boy or girl will LOVE! This ninja 9th birthday party design is for the birthday boy or girl that like ninjas, karate, taekwondo, judo or martial arts. Click the Birthday Ninja Kids Party Gifts & Apparel brand link at the top to see ninja birthday apparel for the whole family! Lightweight, Classic fit, Double-needle sleeve and bottom hem