there's no welt.
the middle thread sewn together the upper and the insole, the braiding is decorative. or maybe it serves a purpose, i don't know, but i've requested it because i like that look. and afaik most if not all norwegian sewn construction have some sort of braiding.
the upper is then turn outwards and sewn onto the mid/outsole (or technically double sole outsole), again no welt.