A shoe includes a sole, an upper, and a welt. The sole and upper define a seam. The welt overlies the seam. The sole includes flex grooves. The upper includes perforations. The welt includes flex slits.

A shoe includes a sole, an upper, and a welt. The sole and upper define a seam. The welt overlies the seam. The sole includes flex grooves. The upper includes perforations. The welt includes flex slits.

A shoe includes a sole, an upper, and a welt. The sole and upper define a seam. The welt overlies the seam. The sole includes flex grooves. The upper includes perforations. The welt includes flex slits.

Methods of forming an article of footwear using a multipart strobel structure and a resulting article of footwear comprising an upper with a transition strip are described. The transition strip that has an outer perimeter edge, an inner perimeter edge, and a width between the outer perimeter edge and the inner perimeter edge, with the inner perimeter edge defining an internal opening of the transition strip, and the inner strobel that has an outer perimeter edge. The inner strobel is positioned in an overlapping relationship with the transition strip and temporarily attached.

A method of attaching at least two pieces of fabric in a waterproof fabric product. The at least two pieces of fabric are attached at a seam. The seam subsequently is sealed by application of a sealing tape. The method includes attaching the at least two pieces of fabric to each other by a welding process to form a welded seam, and performing the sealing by applying the sealing tape to cover the welded seam at one side of the fabric. A waterproof fabric product that has been produced using the method of attaching at least two pieces of fabric. A footwear includes a membrane including at least two pieces of fabric that are attached at a seam.

Methods of forming an article of footwear using a multipart strobel structure and a resulting article of footwear comprising an upper with a transition strip are described. The transition strip that has an outer perimeter edge, an inner perimeter edge, and a width between the outer perimeter edge and the inner perimeter edge, with the inner perimeter edge defining an internal opening of the transition strip, and the inner strobel that has an outer perimeter edge. The inner strobel is positioned in an overlapping relationship with the transition strip and temporarily attached.

A shoe includes a sole, an upper, and a welt. The sole and upper define a seam. The welt overlies the seam. The sole includes flex grooves. The upper includes perforations. The welt includes flex slits.

A shoe structure includes an upper, an insole, a welt, a welt stitch, a sole, a sole stitch, and a cover strip. The upper has a bottom periphery with inner and outer sides, by which the insole and the welt are located respectively. The upper, the insole and the welt are combinedly stitched by the welt stitch. The sole is located below the insole and the welt, and stitched with the welt by the sole stitch. The cover strip is disposed on a top side of the welt and disposed with at least one stitching thread. The shoe structure can significantly enhance the sense of value to consumers on the condition of only slightly increasing the manufacturing cost, and has the advantages of durability, easy maintenance, aesthetic appearance and low cost.

A shoe structure includes an upper, an insole, a welt, a welt stitch, a sole, a sole stitch, and a cover strip. The upper has a bottom periphery with inner and outer sides, by which the insole and the welt are located respectively. The upper, the insole and the welt are combinedly stitched by the welt stitch. The sole is located below the insole and the welt, and stitched with the welt by the sole stitch. The cover strip is disposed on a top side of the welt and disposed with at least one stitching thread. The shoe structure can significantly enhance the sense of value to consumers on the condition of only slightly increasing the manufacturing cost, and has the advantages of durability, easy maintenance, aesthetic appearance and low cost.

A shoe includes a sole, an upper, and a welt. The upper is operatively secured to the sole. The sole and upper define a seam. The seam has a seam toe region, a seam heel region, a seam lateral side region, a seam ball region, and a seam instep region. The welt is secured to at least one of the sole and the upper. The welt covers the seam toe region, the seam lateral side region, the seam heel region, and the seam instep region. The welt does not cover the seam ball region.