No to wires. Yes to freedom. The Bonds Comfy Crop is wirefree for the ultimate in comfort and ease. Made from soft, four-way stretchy fabric for shape and support. This wirefree and hassle-free crop top simply pulls on for ultimate comfort and support. It is made from soft, four-way stretchy fabric for shape and support, and features a comfortable band that stays in place. Available in sizes S - XXXL. Material: Polyester, Nylon and Spandex.