For example, a semi-boot as shown in FIG. 15 produced by the process comprises an sole 47 and an upper 46 which is provided with a toe cap sections 48 made of reinforcing material such as natural leather or sheet, synthetic resin leather or sheet, or the like, a counter sections 49 made of the same or similar material to said cap sections 48, lateral side sections 50 made of flexible and porous (m