What Knit One Below Does and When to Use It

Knit one below is a stitch that lets you pull yarn through a stitch one row down instead of the stitch directly on your needle. The result is a textured column or ridge that sits slightly raised on your fabric. You use it to add visual interest, create decorative lines, or build certain stitch patterns without increasing your stitch count.

The stitch works because you're working into an existing loop rather than creating a new one. This means your fabric stays the same width while gaining depth and dimension. It's common in brioche knitting, textured sweaters, and patterns that call for a "drop stitch" effect without actually dropping stitches.

Unlike increases or decreases, knit one below doesn't change how many stitches you have on your needle. You end the row with the same count you started with, which makes it useful when you want texture but need to maintain your stitch gauge.

Key Takeaways

  • Knit one below pulls yarn through the stitch below the one on your needle, creating a raised texture without changing your stitch count.
  • The stitch works on any yarn weight and any needle size, as long as you can see the row below clearly enough to insert your needle.
  • You insert your needle from front to back under the base of the stitch one row down, then pull yarn through as if knitting normally.
  • Brioche knitting and textured patterns use this stitch frequently, but you can add it anywhere you want a vertical ridge or decorative line.
  • The stitch can look loose or tight depending on how firmly you pull the yarn; consistent tension keeps the effect even across your work.

The Basic Steps for Knit One Below

Start with your working yarn in the back, as if you're about to knit a normal stitch. Instead of inserting your needle into the stitch directly on your left needle, insert it from front to back under the base of the stitch one row below — the stitch that sits directly underneath the one you're about to pass over.

Once your needle is positioned under that lower stitch, wrap your yarn around the needle the same way you would for a regular knit stitch. Pull the yarn through the lower stitch, and you'll create a new loop. Now slip the stitch on your left needle off without working it — you've completed the knit one below.

The stitch you slipped off your needle will sit on top of the new stitch you just created, which is why the effect looks raised. On the next row, you'll knit that slipped stitch normally, and the texture will become visible as you work further.

How Tension Affects the Look

Knit one below can look loose and floppy if you pull the yarn too gently when drawing it through the lower stitch. If you pull too hard, the stitch can pucker or distort the fabric around it. The goal is to match the tension you use for your regular knit stitches.

If your knit one below stitches look noticeably different in size from the rest of your fabric, check whether you're pulling the yarn with the same pressure you use elsewhere. Many knitters find it helpful to do a practice row or two on a swatch before adding the stitch to a project.

Consistent tension becomes more important when you're using knit one below in a repeating pattern, because uneven tension will create a wavy or bumpy appearance across the columns.

Knit One Below in Common Stitch Patterns

Brioche knitting relies heavily on knit one below, often alternating it with yarn overs to create a stretchy, reversible fabric. In brioche, you work knit one below on every other row, which builds the characteristic brioche ridge.

Textured sweater patterns sometimes call for knit one below in vertical stripes or scattered across stockinette to add visual interest without changing the overall structure. You might see it listed as "K1B" or "knit 1 below" in the pattern instructions.

Some patterns use knit one below to create a faux cable effect — working it in the same column for several rows creates a twisted or braided look without the complexity of actual cable stitches. This technique is faster than cables and works well on lighter-weight yarns where cables would be too bulky.

Common Mistakes and How to Avoid Them

The most frequent error is inserting your needle into the wrong stitch. Make sure you're going under the base of the stitch directly below the one on your needle, not two rows down or off to the side. If you're unsure, use a stitch marker or your finger to point to the correct stitch before you insert your needle.

Another common problem is forgetting to slip the original stitch off your needle after you've worked the one below. If you knit the lower stitch and then knit the upper stitch as well, you'll accidentally increase. Always slip the upper stitch off without working it.

Some knitters accidentally work knit one below too loosely, which creates a gap between the new stitch and the one below it. This usually means you're not pulling the yarn firmly enough as it passes through the lower stitch. Tighten your tension slightly on the next attempt.

Knit One Below on Different Yarn Weights

Knit one below works on any yarn weight, but the effect changes depending on thickness. On fingering or sport weight, the stitch creates a delicate, fine texture that's barely visible from a distance. On bulky or super bulky yarn, the same stitch produces a bold, obvious ridge.

Thicker yarns can make it harder to see the stitch you're supposed to work into, especially if you're working on smaller needles. If you're struggling to locate the stitch one row down, try using a crochet hook or a smaller needle to help you pick up the loop more easily.

Slippery yarns like silk or rayon can make knit one below stitches slide around more than they would in wool or cotton. If your stitches are moving too much, work slightly tighter or consider using a yarn with more grip for projects that rely heavily on this stitch.

Practice Exercises to Build Skill

Knit a small swatch in stockinette stitch using yarn and needles you're comfortable with. Cast on 20 stitches and knit 10 rows in stockinette. On row 11, knit one below in every stitch across the row, then knit the next row normally. Repeat this pattern for several rows until the motion feels natural.

Once you're comfortable with every stitch being knit one below, try alternating: knit one stitch normally, then knit one below, repeating across the row. This creates a striped texture and helps you practice the stitch while also seeing how it looks next to regular knit stitches.

After you've practiced on a swatch, try a straightforward project like a dishcloth or washcloth where you can work knit one below in a repeating pattern without worrying about shaping or complex stitch counts. The repetition will build muscle memory and help you develop consistent tension.

Frequently Asked Questions

Is knit one below the same as a brioche stitch?

Knit one below is one part of brioche knitting, but brioche also includes yarn overs and specific row sequences. You can use knit one below on its own in any pattern, while brioche knitting uses it as part of a larger technique. Think of knit one below as a single tool that brioche knitting uses, not the whole technique itself.

What happens if I accidentally knit one below when the pattern says to knit normally?

You'll create an extra texture where it wasn't supposed to be, and the fabric may look uneven. If you catch the mistake on the same row, you can usually frog back and redo it. If you notice it later, you can often leave it as is — one extra textured stitch rarely ruins a project, though it may be visible.

Can I knit one below on the purl side of my fabric?

Yes, you can purl one below using the same principle: insert your needle into the stitch one row down from the front, wrap yarn, and pull through. The effect is the same, just worked from the opposite side. Some patterns call for both knit one below and purl one below in the same piece.

Does knit one below work with circular needles?

Yes, it works exactly the same way on circular needles as on straight needles. The only difference is that you're working in the round instead of back and forth, but the stitch itself doesn't change. Just make sure you can still see and access the stitch one row below.

Why does my knit one below look loose compared to the rest of my stitches?

You're likely pulling the yarn too gently when drawing it through the lower stitch, or you're not pulling the working yarn tight enough after you complete the stitch. Try matching the tension you use for regular knit stitches, and pull firmly on the working yarn as you finish each stitch one below.