Abstract: An attachment for sewing machines allows any sewing machine to stitch double-knit and other stretch fabrics properly by overlapping three stitches before making a successive stitch in a line of stitches. The attachment includes a mounting bar which is secured to an accessory bar on the sewing machine and a first lever pivoted on the mounting bar which oscillates as the needle of the sewing machine reciprocates. A second lever, with fabric engaging reverse feed dogs, is also pivoted on the mounting bar, and is rotated by the first lever through a ratchet mechanism, which allows the first lever to engage and rotate the second lever every third stitch. Upon rotation, the second lever moves the reverse feed dogs into engagement with the fabric to push the fabric in the reverse direction a length of one stitch. When the operation of this attachment is coordinated with existing bottom feed dogs on the sewing machine, three overlapped stitches are made for each one-stitch advance of the fabric.