There is provided a footwear having a three-dimensional shape that fits a foot of a wearer regardless of a stretchability of a knitted fabric. A seamless footwear (1) including an instep cover section (3) and a sole cover section (2) is provided. The sole cover section (2) is divided to a heel portion (20) and a sole main body portion (21). A setup portion (1S) or a knitting end portion is formed at a heel side end of the footwear (1), and such setup portion (1S) or the knitting end portion is extended in a height direction of the footwear (1) and also connected to the heel portion (20). The heel portion (20) is formed by a knitting of stacking a stitch row for plural tiers in a wale direction, and gradually differing the number of stitches in a knitting width direction of the stitch row when stacking tiers of the stitch row. The heel portion (20) is formed to a tongue shape in which a width gradually becomes narrower toward a heel side of the footwear (1) according to the change in the number of stitches.