SPEEDO Trialon Rubber Fins_x000D_ _x000D_ * Power efficient rubber swim fin design._x000D_ * Long curved fin blade translates the lightest kick into a forward thrust._x000D_ * Orthopedic foot pockets for comfortable extended workouts._x000D_ * Size indicates color of fin tip._x000D_ * Shoe size equivalents in the size chart are based on female sizes. Men should size up 1-2 sizes for the proper fit.