Abstract: A sock and its associated method of manufacture. The sock is a knit sock, knit as a continuous tubular structure from a closed toe end to an open top end. At some point between the closed toe end of the sock and the open top end of the sock, at least a four inch section of the tubular structure is sewn from a combination of yarns that contain elastic. After the tubular structure is knit, the top end and the bottom end of the central elastic section are folded together and joined along a common seam. As the top end and the bottom end of the central elastic section are joined together, the material of the central elastic section loops over and radially extends as a flare from the tubular structure of the sock. The flare is made from the combination of yarns that include elastic. As such, the flare has elastic properties and can be stretched over the open top of a shoe. Once pulled over the shoe, the flare of the sock prevents foreign material from getting into the shoe in between the sock and the shoe.