Size 4 (40-42 bra band size per website sizing) I personally think the bra runs small as it fits me, I wear a 36 bra band. “You’ve found the perfect combination of stylish, sexy, and practical. Our Strap Back Ultra-Supportive Sports Bra is nursing friendly with a little bit of sass! Features easy to use clips, removable pads, and plenty of support without the underwire. This supportive nursing sports bra is perfect throughout pregnancy and beyond!”