I?m perfect for regular swimming and wearing under a wetsuit if you?re open water swimming. I?m sold as a separate. I?m made with all the care and love in production that makes me proud to be Funkita. Made from our exclusive C-Infinity fabric, a 100% Italian polyester that is a colourful breakthrough in chlorine resistant fabric technology! The superior choice for swimmers, C-Infinity has exceptional strength and can retain its durability far beyond other elastane swimwear fabrics. Ideal for frequent pool use for recreational and performance-based swimming.