Size says Medium but fits like a small Faux top bra In excellent condition

Faux top bra size says Medium but fits like a small In excellent condition 15 inches from side to side on bottom From pit to bottom 6 inches From top of strap to pit 9 and a half inches from bottom of straps to bottom of bra is 8 and a half inches I really love this bra It can be worn as a crop top also