How to invisibly change colors when knitting in the round —
When knitting in the round, changing colors can be a little bit tricky. If you just change colors as you would with your straight needles, you will be creating a "jog" where the stripes don't exactly match and look more like a spiral. Here is my favorite method to invisibly change colors when knitting in the round or, in other words, here is how to jogless change colors in circular knitting and get perfect stripes every time.
This "jog" is created because, when we knit in the round, we are actually making a spiral. This means that the first stitch of the second color is actually next to the last stitch of another color. When switching colors, we don't have two stitches of the same color next to each other. To prevent this from happening here is a simple and easy trick.
How to invisibly change colors when knitting in the round —
1) Row 1: Knit one row with the new color. This means to insert your right needle in the first stitch and make a loop with the new color. Pull the loop and continue knitting with the new color as you would with straight needles.
2) Row 2: At the beginning of the second row, pick up the back loop of the stitch below and place it on the left needle. Knit together the loop with the first stitch of the round. Continue your project as usual
Find below a video where I show these steps. Happy knitting!