88% nylon 12% spandex. Hand wash cold. Adjustable back hook closure. Adjustable shoulder straps. Underwire bust. ONLY-WI387. 1531. Since 1978, Only Hearts has offered romantics the best in fashionable lingerie, or what founder Helena Stuart calls inner outerwear. The collection features camas, bras, and slips easily layered under dresses and tops, but also cute enough to wear alone. Over the years, the line has evolved to feature not only undergarments, but undergarment-inspired, ready-to-wear styles.