This is a fitted apron, however, the neck has ties, so you have some room for adjustment!  The skirt is made of two layers of flounces, and may have rick rack on it as well.
There are three sizes available:  small, medium, and large.  The skirt is not affected by the size change, just the width of the bodice. 
The cost of the apron is $39.99 for the regular apron, $44.99 if there is rick rack on it, and $49.99 if there is tulle on it.