FINA approved. Unique Aquablade fabric exclusive to Speedo offers lower drag co-efficient and is slicker than skin. Stripes create channeling effect to streamline water away from the body.Longer legs for added coverage and compression fit. Superior, chlorine-resistant fabric. Front lined. Non-slip drawcord. Reinforced seams Great for duals and end-of-season meets. Fabric: 80% Polyester/20% Lycra spandex.