The Japanese are obsessed with personal hygiene. Plus, Japan has some other unique customs. For instance, almost no one wears shoes inside a Japanese home (even in some of the latest apartment buildings that do not have a tatami floor, people still leave their shoes in the entrance or gaikan). I have even gone to numerous business meetings in offices where you have to take your shoes off. In many traditional Japanese restaurants, it is the same. Obviously, you have to have a clean (and of course, without holes) pair of shoes or stockings, but a big problem is that when you have spent a whole day in your shoes (in summer the heat and humidity can be oppressive in most parts of the country) your feet don’t necessarily smell great, particularly of women who may wear boots even in fall and spring. A Japanese company has a clever answer.