1results about How to "Increase opening width" patented technology

A method for making a detachable and easy-to-wear waterproof and moisture-permeable shoe includes: sewing a welt strip along an opening flange of a shoe upper panel to the shoe upper panel; sewing a tongue piece along the opening flange to the shoe upper panel and the welt strip, the tongue piece having a loop portion and a tongue portion, the tongue piece having greater elasticity than the shoe upper panel; sewing two back end abutment flanges of the shoe upper panel together, and sewing two side end flanges of the loop portion together; turning the shoe upper panel and the tongue piece inside out; sewing a top connecting end portion of a shoe-like inner sleeve defining a wearing space to the loop portion; turning the shoe upper panel and the tongue piece outside in with respect to the shoe-like inner sleeve; sewing a bottom portion of the shoe upper panel closed, the shoe upper panel and the tongue piece cooperating to define an interior space; inserting a shoe last into the wearing space; and securing a shoe sole to the bottom portion of the shoe upper panel.