To unnecessitate the inversion of the direction of slippers or turning around by means of a person without stepping on an instep by providing shallow hook parts only for a toe.

Hook parts 1 and 2 are arranged at both ends of each insole in bi-directional slippers. The parts 1 and 2 are a shallow shape only for the toe 5 of a foot 4. When they are used, a user inserts the toe 5 of the foot 4 to one of the hook parts and puts them on like slipping-on. The slippers are the ones to be used in an extremely narrow area such as a toilet so that only one or two steps are sufficient. As the result of it, the slippers are put on only by inserting the toe 5 to the hook part 1 or 2 and slipping it on. When the hook parts 1 and 2 are a bag shape, dust is easily collected inside the tips and hardly cleaned. In order to cancel this kind of fault, an opening is formed between the tip of the hook part 1 or 2 and the slipper insole 3.