Experience optimum speed without fatigue with the Hingeflex fins. The Hingeflex fins incorporate Pivot Flex technology with a detached foot pocket and a webbed split fin designed to deliver power while reducing foot and ankle fatigue. With a compact design, the Hingeflex is a great travel fin that comfortably fins in your vacation luggage.*Feet at the smaller end of the size range may not reach the edge of the fin pocket, while feet at the larger edge of the size range may extend past the edge of the fin pocket.*