Waterproof shoe

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.

1 . An improved waterproof shoe comprising:
 an upper layer;   a waterproof functional layer glued to said upper layer;   an insole layer comprising a net-type material, said upper layer and functional layer connected at end portions to the insole layer;   a water-absorbent and durable lining adjacent the waterproof functional layer;   a spacer comprising EVA Broad to ensure sufficient injection spaces; and   a sole formed of injected material combining together said upper layer, functional layer, insole layer and spacer and comprising different materials to distinguish an inner sole and an outer sole.   
     
     
         2 . An improved waterproof shoe as in  claim 1 , wherein said sole comprises two layers.