Knit Stitch Below

Otherwise known as "KSB"

KSB is often used for Fisherman’s Rib to enhance the rib effect and make the work squishier

You work a KSB into a knit stitch from the previous row, this pulls your work up, making the rib stand out more and the work squishier. Insert your needle into the centre of the knit stitch from the row below when instructed and knit like normal. On the back it will look like you’ve got two stitches on one, work as instructed depending on the pattern.