Patent ID: 8099881

Claim:
A boot, comprising: an outer surface entirely made of a material formed into an integrated body continuously knitted out of a yarn, a part at least covering from a toe to an instep of a foot is knitted from a yarn including a fiber into which minute particles, having deodorization function, antibacterial function or blood circulation promoting function, are interwoven; a cylindrical material provided with an instep-covering part at each end thereof and knitted into a continuous and integrated body is formed by knitting the yarn including the fiber into which said minute particles have been interwoven in the part from a first end to near a half length thereof and formed by knitting another yarn without said minute particles in another half part including a second end, and is folded back in half to form a folded cylindrical body so that the first part knitted out of the yarn including the fiber into which said minute particles have been interwoven is turned inside; and an inextensible piece for fixing a shape of the part covering from the instep to a back of the heel is sewed on inner material of said ends which are overlaid with each other after folding back, wherein the yarn including the fiber into which said minute particles have been interwoven is a twine comprising the fiber into which one or more minute particles selected from among bincho charcoal, a photocatalyst, sulfur, germanium ore, and zirconium ore have been interwoven and other high-elastic fiber; the fiber with the interwoven particles being spirally twisted around the high-elastic fiber so as to follow a change of length.