A knit product includes a compression region and is formed by a circular knitting machine knitting first and second stitches having different stitch sizes in the same course. The second stitch has a smaller stitch size. The second stitch is selectively provided on a stitch-by-stitch basis. The knitting needles have a density of 14 to 24 per inch in a circumferential direction. A face yarn of a knitting yarn has a cotton count larger than 10. A back yarn of the knitting yarn is a covering yarn having a core yarn of polyurethane of 70 denier or less or a man-made fiber of 140 denier or less subjected to texturing. The size difference between the first and second stitches is 0.1 mm to 2.0 mm. The elongation difference between a first-stitch region of the first stitch and a second-stitch region of the second stitch is 20% to 100%.