There is no special secret. The ideal fit first of all depends on the pattern according to which the dress is cut out. Large manufacturers who produce dresses in mass runs use patterns designed for their standard sizes.
And we build patterns for each client individually, according to his exact measurements. We build all patterns ourselves, according to proprietary Israeli technology. This is a laborious process, but without this the dress will not fit perfectly. Over the years, we have gained considerable experience, and now we successfully sew dresses without trying them on.