Device for increasing adherence of soles of shoes e.g. boot, and facilitating cleaning of soles, has sole formed of flexible material, where corner projecting between sole and starting point of heel is softened with flexible material

摘要

The device has a sole that is made of flexible material i.e. silicone synthetic rubber, such that the flexible material fills grooves of the soles in the case of the sole with a heel. A corner projecting between the sole and a starting point of the heel is softened with the flexible material. The flexible material is retracted under pressure of a ground, where the flexible material is of different color.