FEATURES Created for precision and hydrodynamic performance in the water Designed for the optimal combination of compression, muscle support and comfort Hydrophobic treatment of fabric minimizes water absorption and resistance in the water World Aquatics/Fina approved 76% Polyamide 24% Elastane The Powerskin Impulso Open Back kneeskin for women from Arena, features a premium woven fabric and flatlock seams for optimal comfort, flexibility and moderate compression, perfect for swim training sessions and competitions. The hydrophobic treatment reduces drag by repelling water, enhancing your speed and the fast-drying fabric is perfect for athletes competing in multiple events throughout the day. It is World Aquatics/Fina approved. In order to ensure that your product provides you with the best possible performance for a long time to come, the following precautions are recommended: Rinse immediately after use, in non-chlorinated water Do not leave the wet swimsuit in a bag or other container for a long time Do not expose the wet swimsuit in a bag or other container to direct sunlight Wash with detergents suitable for delicate clothes Air-dry hung up and away from heat sources Please Note: This is a specialised piece of compression swimwear designed for athletes. If you are unsure whether this will be suitable please get in touch with our customer services team “We sell the European Arena Racing Swimsuits which often feature an additional manufacturer's logo when compared to the American varieties. Other than the size of the logos, the suits are identical. Please be aware that the additional logo on Arena's European Racing Suits may exceed the 2.25 square inches of logo allowed in USA competitions. NFHS (The National Federation of State High School Associations) and NCCA (The National Collegiate Athletic Association) have rules on swimsuit branding and these suits are not compliant with the branding restrictions of these organizations. They are however fully compliant with UK, European, and the rest of the world's regulations.”