Most traditional style footwears in Japan would fall under the definition of _sandal_ in English (which is no wonder considering the climate), but we have different names for each. If I had to name an umbrella term, it'd be just "footwear".
is the name for traditional wooden platform sandals for town walk. Because of its typical usage, we still call _shoebox_ "geta box" as a custom, but it does not mean is the hypernym of shoes and sandals and that like.
is the general term for all non-Japanese (outdoor) sandals and almost identical to what you imagine from _sandals_ in this extent. Flip-flops (plastic sandals with thongs) is usually called in Japan.