The Challenge back silhouette features thin straps and a contemporary cutout, full front lining, and a medium height leg cut for maximum freedom of movement and support where you need it most. Fabric is polyester. Additional Sizing Info:If your measurements are close to or exceed the upper size range available in our YOUTH sizes, we suggest that you also look at our smaller ADULT sizing (22-28). These smaller sizes are designed and sized with the smaller swimmer silhouette in mind.Please refer to the sizing charts within these products/styles and take the necessary product fit measurements to ensure a proper fitting suit. Note: Red suit fully lined