Tweed Stitch
a dense, firm, woven-looking fabric made by slipping stitches, often in two colours for a tweed effect
Tweed stitch, closely related to linen stitch, builds a tight, woven-looking fabric by slipping some stitches instead of working them while carrying the yarn across the front. On a right-side row you might knit one, then bring the yarn forward and slip the next stitch purlwise so a small horizontal float lies on the surface, repeating across, and the next patterned row offsets which stitches are slipped so the floats stagger. Worked in two colours, alternating a row of each, those floats catch the second colour and pack the fabric into a flecked, tweedy texture that looks woven rather than knitted. The slipping makes a firm, stable, barely-stretchy fabric that resists curling, which is why it suits bags, cushions, and structured jackets more than drapey garments. It works up more slowly and uses more yarn than plain stockinette because of the density. Keep the carried yarn relaxed so the fabric does not pull in.