A waterproof article of footwear, comprising an upper consisted of one or more cut-shaped portions of a flexible waterproof material and a sole coupled to said upper, characterized in that said upper is assembled by stitches applied between peripheral edges of said cut-shaped waterproof material portions, said stitches being covered with a waterproof coating able to couple to said stitches and said upper according to a closeness relationship to each other; and a method of manufacture thereof.