The original, benchmark, patented, short blade swim fin that promotes a smaller, faster, more propulsive kick. Zoomer fins cause enough resistance to firm and tone the legs and core muscle groups. They are small enough to allow excellent control and safety in the water. Zoomers come in two models. Red Zoomers are for swimmers with flexible feet, ankles and a strong kick. Blue Zoomers are softer and recommended for most swimmers.