the Norwegian welt is completely exterior; the stitching that pierces the upper leather and connects the welt to the insole is visible on the outside of the shoe.
Goodyear construction
Goodyear welted shoes are made by first attaching a welt, a thin piece of leather or rubber, to the bottom edge of the upper leathers. Both pieces are further attached to a canvas rib that is cemented
Blake e Blake Rapid construction
A method to attach outsole to upper with stitching through insole and outsole in order to get a more stable but flexible shoe.
