M1L — Make 1 left-leaning (Abbreviation)
M1L stands for "make 1 left-leaning" — the specific, unambiguous version of the M1 lifted-strand increase that leans to the left in the finished fabric, distinct from its mirror, M1R.
How the insertion direction produces the lean
Insert the left needle tip under the horizontal strand between the current and next stitch, from front to back, lifting it onto the needle. Knit into the back loop of that lifted strand. Working through the back loop this specific way is what twists the new stitch to lean left — reverse either the lift direction or the insertion loop, and the lean flips to the right instead, which is exactly the M1R version.
Why the exact direction is worth getting right
M1L and M1R exist as separate, named abbreviations specifically because pattern designers pair them deliberately — one on each side of a symmetrical shaping line, like a raglan sleeve's two increase lines or a yoke's evenly spaced increases — so that both sides lean toward (or away from) the same reference point and read as a mirrored, intentional pair rather than two increases that happen to look slightly different from each other.
Where it shows up
Almost always alongside M1R in the same pattern, marking two sides of a symmetrical increase line — raglan sleeve caps increasing on both the sleeve and body sides of the seam, or a top-down yoke sweater's evenly spaced increase points.
Related abbreviations
- M1R — the mirrored right-leaning counterpart
- M1 — the unqualified version, which most modern patterns treat as equivalent to M1L by default
FAQ
Is M1L worked differently in the round than flat? No — the lift-and-twist mechanic is identical regardless of flat or circular construction; only the surrounding shaping context (where the increase falls relative to markers) changes.
What happens if M1L and M1R are accidentally swapped in a symmetrical shaping line? The shaping still adds the correct number of stitches at the correct rate, but the increases lean the "wrong" direction relative to each other — visible on close inspection as a subtly mismatched pair rather than a clean mirror, though it rarely affects overall fit or size.