Zimmermann Dancer Black Cotton Paneled Organza, Tulle And Lace Blouse Size 1: made from panels of organza and tulle and has flocked polka-dots that complement the pretty floral lace, fitted with supportive boning, measurements: 17 inch bust width x 22 inch center back length x 12 inch sleeve length, light white marking on both underarm areas, tiny pulls in the lace along the bottom hem, brand size guide shows zimmerman size 1 is equivalent to us 6/m.