Abstract: An improved waterproof shoe incorporates several improvements. All layer-edges are connected to a net-typed insole. Neighboring layers are glued together to reduce leaking tunnels formed by crinkles therebetween. An ethylene vinyl acetate with a broad melt transition is added as a spacer to ensure sufficient injection spaces. Net-typed material is used for the material insole to ensure tension stress and mesh size. A water-absorbent and durable lining is added inside the waterproof functional layer to protect the functional layer from the damage by foot. Different materials are used for the sole to distinguish an inner sole which has the best injecting character and an outer sole which is commonly used for touching the ground.

Abstract: A combined shoe formed by a selected vamps and soles with different functions and appearances at any time, comprises a sole, a vamp and attaching means used to quick-connect the vamp and the sole for forming a whole shoe. The attaching means includes a front cap located in front of the sole for buckling the tip of the vamp; a hind cap located in the hind of the sole for buckling the heel of the vamp; two pairs of matched anti-slide plates located in half-soles/heels of both vamp and sole for preventing relative sliding between the vamp and the sole; and a plurality of pressing means used for pressing the vamp on the sole tightly. The combined shoes provide a multitude of combinations and reduce the shoe purchasing cost. Since the vamp and the sole can be disassembled and assembles quickly, when the wearer enters a room, he needs only remove the sole for keeping the cleanliness of the room and still can keep his feet warm and/or prevent the diffusion of foot odor.