#645 is and Underwire bra with optional lace trimmed cups. Designed for stable cup fabrics or stretch cup fabrics. It has a powernet or high spandex content back. Size 32-34, Cup sizes A-D Size 36, Cup sizes A-DD Size 38-40-42, Cup sizes B-DD Choose any of our bra kits for a plain version and any of our bra kits with lace for a version with optional lace trim. To purchase materials on their own, please refer to the supply chart listed on the back of the pattern.