Used once with undergarments worn. Size: M Color: Black Excerpt from the website: The HORSE-SHOE series one-piece swimsuit with a back zipper. This swimsuit makes your body line look slimmer than any other product we've released so far! Yet, everyone who tried it on was surprised at how easy it is to put on and take off. The high-cut design also provides an excellent style-up effect! It features SHEERNET paneling, with sheer sections on the front and back. The skin peeking through the mesh material creates an even more impactful look. The sheer panels, combined with bold cutting lines, create a sexy and cool design.