Knit race swimsuit approved for 12 and under swimmers. Material specifically engineered for race day with water resistance and comfort. World Aquatics Approved: Approved by World Aquatics for national and international swimming competitions. World Aquatics approved racing swimsuits have a unique FINA barcode printed on the swimsuit, making it easily identifiable to swimming officials. 12 and Under Approved: Tech suit approved for 12 and under athletes based on USA Swimming rule. Officially stamped with 12 and under approval logo. Knit Material: Built with comfort and durability. Water Resistant: Water repellant fabric and coating for optimal speed through the water.