This beauty is the reigning champion of training swimsuits! Not only does it have skinny straps, a big cutout at the back and high-cut legs for optimal range of motion, but our Reversible Challenge Back One-Piece is also made from a highly durable swim fabric with sustainably sourced materials. Not to mention you get two different looks in one design.Fabric100% chlorine resistant, MaxLife Eco is our new responsibly-sourced swimwear fabric for long-lasting performance. Made from at least 50% recycled polyester, this innovative material fits well and maintains shape over time. Integrated with 50+ UV protection and quick to dry.