Do not purchase a letter size. This item is bra-cup sized; The letter sizes are only listed for search visibility. ~New With Tags ~Fit~ Best for B-DD cups Medium support for B-DD Mid-rise neckline strikes the balance between concealed and revealed ~Features~ FOR: Swim, surf, stand-up paddleboard, and all water sports Fully adjustable X-back straps Quick drying cups ~Fabric~ Recycled Nylon/Lycra Spandex SKU: 1386376-11-2