full bust adjustment tutorial for a dress with centre front dart How to understand bust size in a dress size chart? Under bust cut style line* is a design detail where the seam or cut of a garment runs directly beneath the bust area. It's often used in dresses, tops, and gowns to: * Need a little extra opacity for you bust piece on the Betty dress? This is literally the simplest and easiest way!, There are a handful of ways to line the bust piece of this dress, but I wanted to go