KTBL – How to knit through back loop

A step-by-step tutorial to KTBL knitting. As you knit through the back loop, you create a twisted stitch

A lot of patterns require you to knit through back loop – typically cables, increases, and certain rib stitches. But how do you knit it? How do you create those twisted stitches?

In this tutorial, I’m going to show exactly how to knit through the back loop. It’s actually quite easy and chances are high you accidentally found one of those stitches on your needles. If you scroll further down, then I’m going to show you some beautiful patterns you can create with stitches knit through the back loop.

โ“˜ In knitting patterns, this stitch is abbreviated with Ktbl. Sometimes, you’ll also find something like “knit one twisted”, though this is much less common. There is also a corresponding Ptbl – purl through back loop.

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Instructions: How to knit through back loop (ktbl)

someone knitting a stitch through the back loop with blue yarn and wooden needles

The knit through the back loop technique creates more or less the same stitch as the regular knit stitch. The difference is in the way the resulting loop will be mounted on your needles and it will also use a tiny bit more yarn.

Active Time 1 minute
Total Time 1 minute

Instructions

  1. Bring the working yarn to the back of the work (if it isn't already there).

    bringing the working yarn to the back of the work to start the knit through the back loop stitch
  2. Enter the first stitch on the left needle from right to left and in the back.

    entering the first stitch on the left needle through the back loop / form behind
  3. Wrap the working yarn around your left thumb clockwise with your right hand.

    wrapping the yarn around the needle counter-clockwise
  4. Pull the working yarn through the loop.

    pulling the working yarn through the loop
  5. Drop the resulting stitch off the left needle to finish.

    dropping the stitch off the left needle to finish ktbl

Notes

And that's it! There's really no magic to it. If you are no continental knitter, it more or less works the same. Just adjust step 2 accordingly by throwing the yarn around instead of catching it with your needle.

How to recognize a twisted stitch

an illustration showing a normal knit stitch with leading leg in front
A normal knit stitch is mounted in a way so the leading leg is in front

It’s quite easy to spot the result of a ktbl, aka twisted stitch, on your needles. A regular knit stitch creates a nice big loop around your needle. It’s wide open for you to enter coming from left to right. Using standard knitting terminology one would say, the leading leg (= the leg closer to the tip of the needle) is in front.

graphic showing the leading leg of a twisted stitch, it sits in the back
A twisted stitch on the needle with the leading leg in the back

The knit through back loop stitch, on the other hand, creates a loop around your needle that is twisted at the bottom. It’s quite a bit harder to insert your needles from left to right because the leading leg is in the back of the work.

Difference between regular stitches and ktbl stitches

They are also visibly different when you look at your fabric. Just take a closer look at this swatch in stockinette stitch. You will see that every regular knit stitch forms a little “V”, while the knit through the back loop almost looks like an “X”. The whole strand appears to be twisted counter-clockwise by 30ยฐ as well.

Why is it useful? Patterns with a KTBL

Now, you might ask what is it good for? How can I fix it? Well, it’s actually quite the remarkable stitches. Do you know why? Because it needs a bit more yarn than the regular knit stitch – so it’s both tighter and sticks out more. Here are a couple of use cases:

#1 Twisted mini cable

close-up of a gusset pattern knit in bavarian twisted stitches
Close-up of some traditional bavarian socks with twisted stitches

Cables are beautiful ways to bring structure into your knitting. If you want to achieve super small mini cables, then knit every knit stitch of the cable through the back loop. That will really make them pop. I come from Bavaria, and our traditional costumes involve incredibly elaborate stockings (all knitted with 2.00 mm needles!). And almost all patterns involve KTBL stitches to create diamonds or cables.

-> Here’s my full tutorial on bavarian twisted stitches

#2 Closing the eyelets of an increase

Sometimes you end with little holes in your knitting – either by accident or by designs when you knit a yarn over. If you knit the resulting stitch in the next round, you can close the hole by quite a bit of margin. But it also works when you pick up stitches (like for the gusset of socks). Then you can knit across the picked-up stitches through the backloop to avoid holes.

#3 Make your 1×1 rib stitch pop

the twisted rib stitch knitting pattern
A swatch knitted in the twisted 1×1 ribbing

Sometimes, when you knit a 1×1 rib stitch, it almost appears like stockinette stitch because the single rows contract so much you don’t even see the gap in between. And/or it doesn’t look very neat on top of that. In these cases, you can opt to knit all knit stitches through the back loop.

This will add quite a bit more structure and stability to the fabric. It will, however, also be a bit less stretchy. So, use your common sense whenever you want to apply this trick.

#4 Untwisting twisted stitches

The last use case is a very smart way to fix mistakes. Sometimes you end up with twisted stitches on your needle. Typically when you pick up stitches – either because your pattern asks you to do so or you dropped a stitch. And in these cases, you can untwist these stitches by simply knitting them through the back loop. You could also slip them back and forth but that takes way more time and is a bit more cumbersome.

Anyway, that’s how to knit through the back loop. Comment below if you still have any questions.

How to knit through back loop

4 thoughts on “KTBL – How to knit through back loop”

  1. I always wondered why one would do a twisted kit stitch. Watching your You Tube post makes it easy to do. Not only that it also makes the cable “pop”.

    Reply
  2. And if I need to undo one of these stitches, how should I do it?
    I have found tutorials on how to undo regular stitches… knitted from the front, but not on how to undo one of these ones.

    Reply
    • what exactly do you mean with undo? Tink aka knit backwards?
      If that’S what you mean, u “simply” have to insert your left needle from right to left – will be a bit award but should be manageable. this will untwist it again.

      Reply
  3. I came to this page after scratching my head about how the instructions for KFB seemingly were just knitting twice. Turns out I’ve been knitting through the back loop the entire time. Guess I’ll have to check out what an ordinary knit stitch really is! Heh ๐Ÿ™‚

    Thanks for straightening me out ๐Ÿ˜€

    Reply

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