This is a genuine, brand-new sailor suit, not a costume made with fabric and sewing by a school uniform manufacturer. It has a side zipper. The color is a standard navy blue. The sizes are: top - 210cm (shoulder width 49cm, bust 127cm, length 56cm, sleeve length 65cm), skirt - waist 100cm (fits W96-W104), length 40cm, and the scarf is white. 100% polyester. Size exchanges are possible.