It doesn't get any better than wire-free when you want to breathe a sigh of relief. Microfiber stretch knit; lace trimWire-free, full coverage, paddedStraps: Adjustable, convertibleAdjustable back hook-and-eye closuresLogo charm; medium support; U-shape back helps prevent ridingCups/backs: 91% polyester, 9%COLOR IS BLACK, SIZE IS 40D340950