Japanese sandals call “Zori” in Japan which is a traditional foot wear. It was common before to be popular the occidental shoes. Today, the Zori’s main material is vinyl.
Of course you can find the original one but those cost a lot. Comparing with Geta, Zori is a formal foot wear.
Lately, Zori is trend to train foot since a child by put thong between foot finger and walking with Zori makes stronger and healthy leg. And some products are in sale for indoor Zori made by cloths as previous same reason.