The Basic Method: Carrying Yarn Inside Your Tube

To knit stripes in the round, you carry the unused yarn inside the tube of your knitting instead of stranding it on the outside. This keeps your floats (the loose strands between color changes) hidden and prevents them from showing on the finished fabric. The yarn you are not using rides along inside the tube, and you straightforward pick it up when you need it.

Start with both yarn colors attached to your work. Knit with the first color for however many rounds your pattern calls for—usually 2 to 6 rounds per stripe. When you reach the point where you need to switch colors, drop the old color and pick up the new one. The old color is now waiting inside your tube, ready to use again when the next stripe begins.

This method works best for stripes that are at least 2 rounds thick. Thinner stripes (single-round changes) create more bulk inside the tube and are harder to manage. Most patterns that use this technique specify stripe widths of 3 to 10 rounds to keep the inside tidy.

Key Takeaways

  • Carry unused yarn inside the tube of your knitting by dropping it and picking it up at color changes, rather than stranding it on the outside.
  • Stripes work best when each color runs for at least 2 to 3 rounds before you switch, so the floats inside stay loose and don't pucker the fabric.
  • Tension matters: keep your floats slightly loose so they do not pull the edges of your stripes inward or create visible bumps.
  • When you pick up a color you have not used for several rounds, gently tug it to straighten the float before you start knitting with it again.

Setting Up Your Yarn at the Cast-On

Before you knit the first round, both colors need to be attached to your work. The easiest way is to tie both yarn tails together with a straightforward knot close to your cast-on edge, then weave in the knot later. Alternatively, you can hold both colors as you cast on, treating them as a single strand until you are ready to separate them.

Once you have cast on and joined to knit in the round, knit the first round with whichever color your pattern calls for. The second color sits idle inside the tube. There is no need to find it or anchor it—it straightforward rides along. When you finish the first stripe and are ready to switch, you will drop the working color and pick up the waiting color in its place.

Switching Colors Without Twisting the Floats

The moment you switch colors is where most knitters run into trouble. If you are not careful, the old color can twist around the new one, creating a tangled mess inside the tube. To avoid this, always drop the old color and pick up the new color from underneath it, in the same direction you have been knitting.

Here is the exact motion: finish your last stitch with the old color. Drop it. Reach down and pick up the new color from below, coming from the same side you always approach your stitches from (usually from the right if you are a right-handed knitter). Knit the next stitch with the new color. The old color now sits inside the tube, untwisted and ready for the next stripe.

If you pick up the new color from the wrong direction, it will wrap around the old color and create a knot. If this happens, straightforward drop both colors, unwind them, and start again. It takes only a few seconds and saves you from having to rip back.

Managing Loose Floats Inside the Tube

The floats inside your tube need to be loose enough that they do not pull your fabric tight. If they are too snug, the edges of your stripes will pucker inward and your finished piece will look wavy instead of flat. A good rule is to leave about a quarter-inch of slack in each float—enough that you could slip a toothpick under it without forcing.

When you pick up a color you have not used for 5 or 6 rounds, the float inside the tube may be bunched or kinked. Before you start knitting with it, gently pull on the yarn to straighten it out. This takes only a second and prevents the float from creating a visible bump on the outside of your work.

If you notice your floats are consistently too tight, you are probably holding tension too firmly on the unused color as it rides inside the tube. Let it sit more loosely in your hand, or even drop it entirely between color changes and pick it up fresh each time you need it. Loose floats are far easier to fix than tight ones.

Stripes in Different Stitch Patterns

Stockinette stitch (knit every round) is the easiest base for stripes because the fabric is smooth and the color changes are clean. But you can also knit stripes over ribbed patterns, seed stitch, or any other stitch pattern you like. The principle stays the same: drop the old color, pick up the new one from underneath, and keep the floats loose inside the tube.

If you are working a pattern with decreases or increases, the color changes happen at the same points they would in any round. The yarn floats do not interfere with shaping. Just be mindful that if you are decreasing near a color change, the float inside the tube may bunch slightly—this is normal and will not show on the outside.

Fixing Common Mistakes

The most common mistake is picking up the new color from the wrong direction, which twists it around the old color. If you catch this right away, drop both colors and unwind them. If you do not notice until several stitches later, you can usually unravel back to the color change, fix it, and knit forward again. It is faster than trying to fix a twisted float after the fact.

Another frequent problem is floats that are too tight. If you finish a stripe and see that the edges are puckered, the floats were too snug. On your next project, remind yourself to keep them looser. If the puckering is severe, you can sometimes gently stretch the fabric widthwise to even it out, but prevention is easier than repair.

If you accidentally drop a color and it unravels inside the tube, do not panic. Pick it back up as soon as you notice, and the damage is usually minimal because the float is hidden. Weave in the tail later and move on.

Weaving in Floats at the End

Once you have finished knitting, you will have floats inside the tube and yarn tails at the cast-on and bind-off edges. The floats can be left as they are if they are not too long—many knitters straightforward weave them in using a tapestry needle, running the needle through the float and securing it to nearby stitches.

For a cleaner finish, some knitters prefer to weave floats in as they knit, using a technique called weaving in on the go. This means catching the unused yarn under a stitch every few stitches so it does not create a long, loose float. This takes more attention but results in a neater inside. Most patterns do not require this level of detail unless the floats are very long.

Frequently Asked Questions

Can I knit stripes in the round with more than two colors?

Yes, but it becomes harder to manage. With three colors, you are carrying two unused yarns inside the tube at once, which creates more bulk. Most knitters stick to two colors per project, or use a technique called jogless joins to change colors without carrying floats at all. If you want to try three colors, keep the stripes wider (at least 4 rounds each) so the floats have room to sit loosely.

What if my floats are showing on the outside of my work?

This usually means the floats are too tight and pulling the fabric inward. On your next stripe, consciously keep the unused yarn looser as it rides inside the tube. You can also try picking up the new color and knitting the first stitch a bit loosely to give the float more room. If the damage is already done, you can sometimes gently stretch the fabric to even it out, but prevention is the better fix.

How long can a float be before it becomes a problem?

A float can safely be 4 to 6 inches long without snagging or creating visible bumps. If your stripes are very wide (10 rounds or more), the float inside the tube will be longer, but as long as it is loose, it will not cause problems. If you are worried about a long float catching on something, you can weave it in as you knit using the weaving-in-on-the-go method.

Do I need to use the same weight yarn for both colors?

Yes, both colors should be the same weight and fiber content. If one yarn is much thicker or thinner than the other, the floats will not sit evenly inside the tube, and your stripes may look uneven. Stick to yarn that is the same thickness and ideally the same fiber so the fabric behaves consistently throughout.

What is a jogless join, and should I use it instead?

A jogless join is a technique where you change colors at the end of a round and then slip the first stitch of the new color to hide the jog (the small step that appears when you change colors in the round). It eliminates the need to carry floats inside the tube. It takes a bit more skill to execute cleanly, but many knitters prefer it for projects where they want no floats at all. For most striped projects, carrying floats inside the tube is simpler and faster.