Mini Starlet bra in Blue & Black, it is size adjustable max. one size up or down. 
 
Size XS-S & S-M have slim elastics and smaller starlets.
Size M-L & L-XL have wide elastics and medium to large starlets.
All sizes have adjustable straps in the neck, back and in between the Starlets. 
 
Product also available in different colors and fabrics, all made from leftover cutoff/deadstock lycra.