Would fit sizes 0-4. I am a 6 and it’s starting to get snug on me. Measures 13 inches across. See photos. For reference, I am 5’7 and 140 pounds and I wear a 36B. This would work for up to a size 34C I believe though it’s good for cup sizes A-C. Nylon/Spandex Hand Wash Imported Description Color/pattern: blue. Design details: lace design. Shell: 88% nylon, 12% spandex. Lining: 92% nylon, 8% spandex. Hand wash. Very good used condition, with normal wash and wear. Please see pictures. Any questions! Just ask. Bundle and save! Drop this in your cart by hitting the shopping bag icon. New to Poshmark? Use code ViviannaSmith for $10 off. Any questions, just ask in the comments below! Happy poshing! 🎀