A ninja outfit is the perfect Halloween costume for little boys. It's fun, energetic, and shows off their mischievous side. The Boy's Black Ninja Avenger Costume is a great choice because its the classic black ninja suit that comes with the complete package: matching shirt, pants, vest, and ninja hood. The ninja mask has an opening only for the eyes, but the material the hood is made of is very light and easily breathable. The vest is designed with a print to mock the authentic ninja uniform with a printed on belt and closed robe look. The vest is then accented with a really cool and detailed gold dragon head emblem.