Simplicity 6900; ©1966; Childs One-Piece Dress and Underdress: The dress with skirt gathered to bodice above normal waistline has back zipper, bias roll-type collar and bias bound, short, set in puff sleeves. Lace insertion and ribbon trimmed V. 1 made of sheer fabrics only has collarless and sleeveless underdress. The underdress has back zipper and skirt gathered to bodice above normal waistline. V. 2 has jumbo rick-rack trim.