Designed for full-body shaping, the Spanx Oncore Open-Bust Bodysuit is constructed with powerful, lightweight yarns and targeted sculpting panels to streamline your silhouette. Featuring high-level compression for a flawless finish, this figure-flattering bodysuit has an open-bust design so you can wear it with your own bra. Material: 80% Nylon, 20% Spandex/Elastane