Size:Medium Economy Printed Spider-Man costume jumpsuit with attached boot-tops, and mask; officially licensed Marvel costume, items shipped and sold directly by Amazon are guaranteed to be authentic. IMPORTANT! Costumes are sized differently than clothing, do not select size based on child’s age or clothing size, use the Rubie’s Child Size Chart. From Spider-Man 3, look for Rubie’s Spider-Man, Iron Man, and Avengers costumes for a fun group or family look. Family-owned, family-focused, and based in the U.S.A. since 1950, Rubie’s has classic and licensed costumes and accessories in sizes and styles for the entire family.