Simplicity 6784; ©1966; Misses' One-Piece Slip-Dress and Dress: The slip-dress with shoulder straps has side zipper and optional sequin braid trim. Dress V. 1 & 2 have high bias bound neckline, long set-in sleeves gathered to snapped cuffs and back opening with button loop closing and bias bow. Dress V. 1 is trimmed with lace edging.