VonFon Strappy Add-2-Cups Push-Up Halter Top Sexy Women Bikini Beachwear Bra Material:80%Nylon +20%Spandex All the cups are the same size please do not chose as purchase a bar. S: Bust: 70AB - 75AB / Waist: 25-29" M: Bust: 75AB - 80AB / Waist: 27-31" L:Bust: 80AB - 85AB / Waist: 31-34"