The Blueseventy Podium Racerback swimsuits feature premium Italian made Carvico Vita PL fabric, made from recycled materials. This fabric is renowned for its quality, shape retention, chlorine resistance and soft feel. The Racerback offers thick straps for the most support with moderate rear coverage.Our swimwear is designed for a competitive fit. It is meant to fit tight. Size up for a more comfortable fit. Make sure to review the size chart, we have found height and weight to work well when sizing our swimwear. If you're between sizes or at the lower end of a size, and you want a comfortable fit with more butt coverage, choose the size you fall in, or the larger size if between. If you want a very tight competitive fit, size down.If you're at the top of the size range, that size will be a tight / competitive fit. You may want to size up for a more comfortable fit / more coverage.We are no longer producing the Racerback in size 40, and have very limited stock of size 38. If you fall into these sizes we highly recommend you look at / try the new Athena style which was developed this past year to offer a more inclusive range for our women swimmers.