Level : Intermediate Sizes : 34 - 44 (Eur Sizes) - Each size comes with 3 brest cup sizes A;B, C) Notions : Main fabric in 140 cm width : between 170 cm (size 34) and 220 cm (size 44). A square of fusible tape (a few centimetres). Note : you can choose to not sew the straps into the fabric and replace them with any kind of braid. In this case, you will need 2,20m of braid. Note 2 : you can also choose to replace the back skirt straps with an elastic band. You will need between 37 cm (taille 34) and 47 cm (taille 44), with a thickness of 1,5 cm. The explanations can be found on page 10 of the instructions. Fabric suggestion : Choose a fabric with fluidity: silk, viscose, light cotton...