Product Fit & CompositionDesigned to give a figure-hugging silhouette, with piping to enhance the design. We recommend selecting your regular size for added support during performance.If you're between sizes, we recommend sizing up for the perfect fit.Fabric Composition: Polyester Spandex, 245 GSM. The Core Cross-Waistband Daily Tank was made to flatter and move. With a sculpted fit and a signature cross-wrap hem, it cinches you in just right while offering a sleek silhouette.