Speedo Women's Muscle Back Logo Endurance Lite Swimsuit 49% Polyester/51% Pbt Endurance lite offers 10% less weight but same long lasting property of regular endurance+ Contemporary leg height with new and improved hydro bra construction for added support and long lasting comfort Four-way stretch technology provides a body hugging fit, great shape retention, and soft comfort Back design provides optimal range of motion Made by speedo, the world's No 1 swim brand