Repairing a tear in the side

Short answer: A split in the side seam is closed from the inside with stretch stitches, while a tear in the middle of the fabric needs a patch behind it. The first is easy and barely shows, the second always shows a little. Both can be done at home with needle, thread and some patience.

Find out where the split is

Turn the garment inside out and check whether the split follows the seam or runs into the fabric itself. If it runs along the seam, the thread has broken and the fabric is intact. If it goes into the fabric, the fibres are torn. That difference decides which method you need and how much work lies ahead.

In the seam it is easy

If the split is in the seam itself, the fabric is whole and just needs sewing back together. Follow the old seam line, and start and finish a few centimetres into the intact seam so the repair holds. This also applies to small splits in stretchy items like bamboo socks for men and women, where the toe seam can give.

Mid fabric needs a patch

Sew a piece of thin fabric on the inside behind the tear, then stitch the edges of the tear down onto the patch with small stitches. The patch carries the strain so the tear does not reopen. Choose a fabric thinner than the garment so the spot does not stiffen. It holds well on thick pieces like a bamboo hoodie for men.

Choose stretch stitches

A tear in knitwear sewn with straight stitches opens again at the first stretch, because the thread cannot give with the fabric. Use zigzag on a machine or backstitch by hand so the seam can stretch. This matters most for close fitting clothes like bamboo underwear for men, stretched each time you put them on.

Use the right thread and needle

Thread matching the fabric makes the repair almost invisible. Polyester thread is strong and gives a little, so it suits knitwear. Use a round tipped needle that slides between stitches instead of splitting them. A fine needle leaves smaller holes and a neater result, especially on thin, soft fabric.

Secure both ends well

Most repairs fail at the ends, not in the middle. Start a few centimetres before the split and finish a few after it, with a few extra stitches back and forth at each end. Tie a knot on the inside and trim the thread half a centimetre from it so it does not work loose.

Why side seams split

The side seam takes strain when clothes fit closely, when you bend or reach. If a garment is too small, most of the pull lands on the seams and the thread gives before the fabric. It can also happen after very hot washes or tumble drying. Check the size if splits keep appearing in the same place.

When a tailor is better

If the tear is longer than ten centimetres, or hard to reach, a tailor is often quicker. They have machines that sew neat stretch seams and can set in a patch that barely shows. For small splits in seams it is rarely needed, and doing it yourself saves time and money.

Frequently asked questions

How long can a split be

Up to ten centimetres can be hand sewn without trouble. Beyond that, a tailor or sewing machine is quicker and gives a more even result.

Does the repair show

In a seam hardly at all, in the middle of the fabric always a little, especially on thin, patterned or light fabric.

How long does it last

Many years in a seam, less on a patch mid fabric, because the patch forms a stiffer edge that wears over time.