Wacoal Women's Elegance Hidden Wire Minimizer Bra with Embroidery 100% Polyester Embroidery: 70% rayon, 30%nylon; Bottom cups: 100% polyester; Back: 76% nylon, 24% lycra spandex French tuck and hidden wire combined gives an excellent sink in shape and separation Minimizes by an inch Hand wash warm, do not wring or fold cups, dry flat on towel Made in Korea