An article of footwear includes a tongue, a collar located at an upper portion of the footwear, and a gaiter having a lower portion integrally fixed to the collar of the footwear. The tongue and the collar together define an opening, preferably sized to receive a wearer's foot. The gaiter includes first and second fastening flaps and a fastening device (or fastening means) located on the first and second fastening flaps. The gaiter is configured to switch between high and low positions, the high position being a position in which a substantial portion of the gaiter extends above the upper-most portion of the footwear, and the low position being a position in which a substantial portion of the gaiter is located below the upper-most portion of the footwear.