Sewing pattern for the “Opéra Bastille” blouse

Flowing blouse with chest darts. 
Cuffs gathered at the ends with elastic. 
Small slit in the back closed by a strap with a small button.
 Explanations and full-size pattern in French from 34 to 46 To cut your fabric with complete peace of mind, a cutting plan is proposed depending on the width of the fabric used. 
Pattern in a new, exclusive reusable cardboard box from La Droguerie!
 The paper pattern comes with its explanatory sheet to help you make the model. Pattern designed, manufactured, printed and folded by hand in France