Japanese footwear can be loosely divided into two types: zori and geta.
Those with a base of wood are geta, while those that utilize other materials are zori.
Regarding use, geta are for casual wear and zori are formal, so when wearing formal Japanese clothing one must always wear zori.
Furthermore, zori can be broken down into casual and formal types while there are also lots of different types of geta, classified according to the materials used in their production.
To cater to various people's sizes, with different lengths of thong fitted according to the height of the individual's instep, they are custom-made by specialist craftsmen.
There are still many old shops that will provide aftercare and repairs, and these are well worth looking inside if you get the opportunity.
There are too many different types of geta to list here, so I will simply talk about the wood base instead.
Paulownia wood is light, the grain is straight and dense, producing beautiful geta.
The way the base is cut also varies.
Some are cut to create a triangular shape in the front when looked at from the side, while others simply have two.
There is a type called pokkuri that have been hollowed out so they make a noise when the wearer walks, and many more.