Seems fairly true to size in the cups, although it's a touch loose in the back and the cups are quite shallow. Ideally it would fit a large 30J or small 32HH. The gore is a bit wide on me and the straps are slightly too wideset, but other that that it seems good. The wires are a fairly standard width (neither wide nor narrow) and it gives mega Marie Antoinette cleavage on me, mostly due to it being too small. The band and straps are made of a very stretchy (but comfortable) material. Very stunning bra, definitely worth a try for anyone who suits the style.