100% polyester including 43% polybutylene terephthalate. Very stretchy fabric. Chlorine resistant. UV 50+ protection. Fairly high front neckline. Binding and double topstitching on straps, body and leg openings. High-leg design for a slimming silhouette. Racer back. Front fully lined. Made in Spain. Certified STANDARD 100 by OEKO-TEX® N° CQ 1007/7, IFTH.