The Norwegian-stitched leather Derby shoe

Shoes made with Norwegian stitching have the advantage of keeping the foot in position and offering excellent resistance. The upper is mounted on a shoe-tree then fixed to the insole rib using a horizontal seam, which is usually the first seam. The upper is then folded outwards and sewn onto a sole using a second vertical seam. We test the strength of the stitching by simulating a pull-out by pliers: we then measure the force required to remove them, to ensure that the final product will be as robust as possible.