Simple black dress - perfect basic piece for layering and styling. Well suited for S/M, as the back is elastic and therefore allows for a good fit. - Would need to be smoothed out. Loop/belt not included. 

(Actually M, but I also wore it with size XS, unfortunately it is still slightly too large for XS) 

Best worn with a belt or a fabric loop, (as I am wearing it in the picture with the jumper underneath, for example). This also makes it easy to style in winter - perfect (dark) academia outfit ;)

The pattern is slightly different at the front (see last photo). - But it is hardly noticeable.