A set appears to be a dress but can be worn separately, giving a lot of freedom. The skirt is in size S but works as a M too. Jersey material is elastic, in Regina we usually recomend to try one size less than your usual. This Cocco skirt model can be ordered in different colors and sizes depending to availability. Top is in M size. 
 
Skirt 90€
Top 75€
 
Photo Astrid