To clean: Dip your Rider's in water with mild detergent for a few minutes. Use a soft sponge (non abrasive) to clean them then rinse. Do not put them in the washing machine. Keep away from high temperatures.
"Our sandals and flip flops are made in Brazil. On the sole of each style you will find the Brazil and European size, and occasionally the US size. Unless otherwise stated, Ipanema & Rider products offer a more snug and narrow fit. It is recommended you go up a size."