The measurement across the bust area is 15 inches. Top of bodice where the strap starts to the seam at the thigh is 16 inches, then to the crotch is 23 inches. It's a halter style and the string is adjustable where you can make it wider or smaller depending how wide your back is and then it ties at the neckline. I don't have anything on hand to compare to woman's size 8. Sorry. I hope this helps.