To eliminate the problem that when a footwear (shoes, slippers, Japanese sandals, wooden clogs, sandals and so forth) are worn, spaces between toes are placed under a closed state, and a force is hard to put on the toe tips, and even with a footwear of a right size, feet shake sideways or slip and are unstable.

This footwear is constituted by attaching an anti-slip article such as protrusion b having a semi-disc shape on the internal surface a of a bottom. Thus, spaces between toes open, and a force becomes easier to put on the toe tips, and the anti-slip article can be pinched by the overall side surfaces of the toes, and shaking sideways and slipping of the toe tips are reduced, and the fitting can be made more stable. Also, by this footwear, in one without thongs as shown in Figure 1, spaces between toe tips can be opened even while wearing socks or stockings, and the fitting can be stabilized.