Super-luxurious materials may not be A.F. Vandevorst’s thing, but clever construction certainly isand that needn’t mean stiff and complicated. Witness a pristine white cotton shirtdress, or a pair of super-skinny, zippered pants in the palest suede, or a simple chocolate canvas trench. A chiffon dress printed with plumes was, quite literally, as light as a feather; a pea-green jersey dress was sliced down the back to reveal a flash of bare spine. Even their print, in the form of an arty, abstract paisley lookedheaven forbid!almost chic.