Paraboot is the world leader in Norwegian construction.
The principle is that the upper is fixed to the sole by means of an assembly insole, using a welt and two visible lines of stitches: welt stitching on the upper and lock stitching on the sole. It is also possible not to have a welt, in which case the two lines of stitches are sewn directly onto the leather at the bottom of the upper; this serves as a welt.
Norwegian construction was originally used especially for mountain boots and other intensive uses. It is now also used for smart dress shoes and has nothing to do with Norway!