Underwire lace bras are simply bras that have lace designs. Apart from the fashion sense injected into these bras, they have a built-in underwire that gives full support to the breasts. These under wires also help in molding the breast, giving them a shapelier and bustier look. Under wires can be made out of metal or plastic but most prefer the plastic ones as they provide more comfort. The under wires are placed under the cup of fashionable lace bras. Most people believe that under wires are harmful but you will find that HerRoom.com lace bras have under wires that are comfortable and fit perfectly with your curves. Enjoy the feel of these bras by buying one today!