How To · Fashion · Repair
Repair a Hole in Your Favorite Sweater
A small hole doesn't mean retirement. We'll walk you through three repair methods—from invisible darning to strategic patching—so your favorite sweater stays in rotation.
5 min read · IrisA moth hole, a snag from a fence, or a catch on a watch—sweater damage happens. The good news: most holes are fixable without professional intervention, and the repair often becomes invisible once complete. The method you choose depends on hole size, yarn weight, and whether you're willing to embrace a visible patch as design detail.
We've outlined three approaches here, from the nearly-invisible darn to the strategic patch. Start with the smallest hole you can see, work in good light, and take your time. A sweater worth keeping is worth ten minutes of repair work.
A sweater worth keeping is worth ten minutes of repair work.
What you'll need.
- 01Needle (size 7 or 8)
- 02Matching yarn or thread
- 03Small scissors
- 04Darning mushroom or egg (optional)
- 05Patch fabric (cotton, linen, or knit)
- 06Lightweight interfacing
- 07Pins
- 08Soft brush
Step one · 1 minute
Assess the damage
Hold the sweater up to light and examine the hole. Is it a small snag (dime-sized or smaller), a medium tear (quarter-sized), or large damage (larger than a quarter)? Check the yarn type—smooth merino or cotton darns cleanly; fuzzy mohair or angora is trickier. Look for loose threads around the hole; trim any stray fibers with small scissors.
Holes in high-stress areas (elbows, cuffs, underarms) may need reinforcement even after repair.
Step two · 3 minutes
Darn small holes (dime-sized or smaller)
Thread a needle with yarn that matches your sweater as closely as possible. If you have the original yarn, use it; otherwise, visit a fabric store and hold the sweater up to find a match. Anchor your thread inside the sweater with a small knot. Weave the needle horizontally across the hole in parallel lines, then weave vertically perpendicular to those lines, creating a tight grid. Work from the inside of the sweater so stitches stay hidden.
Use a darning mushroom or egg under the hole to keep tension even and prevent puckering.
Step three · 2 minutes
Patch medium holes (quarter to half-dollar sized)
Cut a patch from matching or complementary fabric—cotton twill, linen, or a tightly woven knit works well. Make the patch at least half an inch larger than the hole on all sides. Pin the patch over the hole on the inside of the sweater. Using a needle and thread, stitch around the perimeter of the patch with small, tight stitches. You can leave the patch visible on the inside, or fold the sweater's edges inward and stitch for a cleaner finish.
Consider a contrasting patch on the outside as an intentional design choice—it's honest and often looks better than a hidden repair.
Step four · 2 minutes
Reinforce the repair from inside
Once your darn or patch is complete, flip the sweater inside-out and inspect your work. If the repair feels loose or the hole edges are still frayed, add a second layer of reinforcement. Stitch a small rectangle of interfacing or thin fabric behind the repair using a ladder stitch or whip stitch. This prevents the hole from reopening during wear and washing.
Interfacing adds durability without adding bulk—look for lightweight, fusible varieties at fabric stores.
Step five · 2 minutes
Test and finish
Turn the sweater right-side-out and examine the repair in natural light. Run your fingers over the area—it should feel smooth with no catching. If the repair is visible from the outside and you're satisfied with it, you're done. If you want to refine it further, use a small brush to gently fluff the yarn around the repair area, which can help blend the stitches.
Wash the sweater by hand in cool water after repair to set the stitches and ensure the patch holds.
How to know it works.
A successful repair feels invisible to your fingers and holds through multiple wears and washes. The hole should not reopen, and the patch or darn should not catch on anything. If the repair is visible, it should be intentional and neat—not frayed or loose.
Questions at the mirror.
The hole is too large to darn. What do I do?
Move to patching. A patch works for holes larger than a half-dollar. If the damage is truly catastrophic (multiple large holes, extensive unraveling), consider professional repair or accepting the sweater's retirement.
I can't find matching yarn. Should I use a different color?
Yes. A slightly different shade often blends better than you'd expect once the sweater is on your body. Alternatively, embrace a contrasting darn as a design detail—it's honest and often looks intentional.
My repair came loose after washing. Why?
Your stitches were too loose or your thread wasn't secured properly. Redo the repair with tighter stitches and a knot anchored inside the sweater. Consider adding interfacing for extra reinforcement.
Can I use a sewing machine for this?
Not recommended for small holes—a machine will pucker delicate knit fabric. Hand stitching gives you control and produces an invisible or intentional repair. Save the machine for patching large, sturdy fabrics.