From the 25 April 1965 L.A. Times- Fashion cools it with linen.

'Ben Zuckerman, one of America's greatest tailors, blends deepened rosy pinks in a three part costume that's practically a whole wardrobe. His thinly belted overblouse rides over an easy skirt with pockets slashed into each side. Jacketed by day,  it wears the precise stamp of border-stitched edges, continental vents at the back and just a hint of a yoke (faked by overlapping shoulder seams).'