Longline bras were originally designed to shape the body, much like a bustier or corset. They had strong boning and wiring, and a sculpted cup structure. Even just a few years ago we would usually see these styles being super embellished, and meant to serve high-fashion models, or vintage costumes. Luckily, longline bras have come back in a sweeter, softer, trendier way! The length no longer serves a shaping purpose and boning seems to have been nixed from the new cute formula. The new and improved soft cups work perfectly for all cup sizes, however plus-size women prefer them because they provide some serious support - longline bras allow the breast weight to be distributed around the rib cage.