Designed with a shorter fin blade, the Nike Swim Fin will enhance your efficiency and improve your kick cadence, without sacrificing technique. COMFORTABLE The ridged areas on the side of the blades are designed in conjunction with softer flex points to maximize comfort and reduce cramping. SHORT FIN BLADE Shorter fin length delivers optimal level of propulsion, allowing you to maintain proper form and body alignment. OPEN TOE BOX The open toe box with grooves at the tip of the blade ensure a superior fit and keeps the foot in place during flip turns. Original Colour by Producer: Black/Photo BlueColour: BlackColour: BlueMade in: ChinaSize: XS