Simplicity 3594; ca. 1951; Misses' Sheath Dress and Slip: All styles feature slim lines and opening at the lower side seams. Sheath dress Style 1 and Slip Style 2 have narrow straps. Style 2 is trimmed with lace banding on the bodice and at the hem-line and openings. Sheath dress Style 3 may be worn strapless or with narrow straps.