Hinged wooden soles were made during World War II in Europe for everyday wear, especially in France. Andre Perugia even took out a patent in 1942 for articulated wooden soles. However, wood-soled shoes were not as common in the U.S. during the war, except for use as beach sandals. In the late 1940s a Wisconsin company began to make Flexiclogs and received a patent for their version of an articulated sole in 1952. The vinyl straps made them useful for beachwear, however, the style didn’t last long. Platform shoes were on the way out of fashion, and rubber thong sandals, based on the Japanese Zori sandal were becoming popular for beachwear.