From Swim Outlet's Website:
https://www.swimoutlet.com/products/adidas-solid-splice-vortex-back-one-piece-swimsuit-8141852?color=purple
Infinitex™+ Fabric
100% Polyester.
Chlorine-resistant: For longer durability.
Long-lasting elasticity: Retains shape in the pool.
Features
Women’s one piece swimsuit.
Thin straps: For reduced tan lines.
Circle, cut-out back: For flexibility.
Solid Splice design.
Adidas logo at chest.