McCall's 7578 1981 One piece bathing suits have elastic in upper edge and leg casings, and detachable strap buttoned to front. View A is twisted at upper front. View B same as A, has contrast. View C upper front is gathered into band and at sides; low cut back has buttoned strap. View D, same as C, has self fabric ruffle. Shown on the cover of McCall's counter catalog, July 1981.