The Didge Designs fitting guide Every woman's bust and body size increases at different rates during pregnancy and nursing. This simple guide below shows the two measurement s needed for the Didge Designs T-shirt Maternity Bra™. 1. UNDERBUST The underbust measurement is the width of the back and the diaphragm. The sizing for each measurement is represented by a number e.g. 12, 14 or 16 *Clothing sizes and underbust measurements are not relative - you could be a 14B and wear a size 12 top! |