A DD cup is not a scaled-up B cup
A swimwear style that fits in a B cup can fail in DD. Settle the underband, cup construction, strap load and grade rule before the first large-cup sample is cut.
Swimwear Size Grading: What to Check Before Bulk Production
A practical review process for checking grade rules, size-set samples, measurement points, and fit changes before a swimwear style moves into bulk production.
