These nice Japanese Zori Sandals come in black or red velvet thongs or white vinyl thongs and are sold in inch sizes. (NOT shoe sizes). Red strap zori are narrow and usually worn by women.
To find your size stand barefoot on a piece of paper and outline your foot keeping your pencil perpindicular to the paper. Measure the tracing with a ruler from the tip of your big toe to the end of your heel and round up to the nearest size.
The top of the zori is a vinyl type material with a rubber sole. Enjoy these zori indoors or outdoors!