This is a sailor suit style cosplay costume. It has an open back design, making it sexy. The waist measures 39.5cm when laid flat. This mannequin is a women's M-L size, so it was a bit large and I pinched it to take the photos. There is also a similar item with a flat waist measurement of 37.5cm, so please inquire in the comments if you are interested. - Color: Navy - Design: Sailor suit style - Style: Mini skirt - Back design: Open back - Decoration: White stripes Thank you for viewing.