How to Fix a Hole in Cashmere

A Hole Does Not Mean the Sweater Is Done

Finding a hole in a cashmere sweater feels like a gut punch — especially when you paid $150 or more for it. But holes in cashmere are fixable in most cases, and a good repair can be genuinely invisible. The approach depends on the size of the hole, where it is on the garment, and how much time you are willing to spend.

Small holes — the kind made by moths, snags, or loose stitches — take ten minutes to fix at home with basic sewing supplies. Larger holes or tears in visible areas might need professional reweaving. Either way, throwing the sweater away is almost never the right call.

What Caused the Hole?

Identifying the cause helps you pick the right repair method and prevent it from happening again:

• Moth damage — Small, round holes often clustered together, typically in areas where the sweater was folded and stored. Moths eat protein fibers (cashmere, wool, silk) and are attracted by body oils left in unwashed garments. If you find moth holes, check all your other cashmere and wool pieces immediately.
• Snags — A pulled thread that creates a small hole or a run in the knit. Usually caused by jewelry, rough surfaces, or velcro. The surrounding knit may look distorted as the pulled thread tightens neighboring stitches.
• Wear and thinning — Holes that appear at stress points like elbows, cuffs, and underarms. The fabric thins gradually from friction until a hole opens. These are harder to repair invisibly because the surrounding fabric is also weakened.
• Dropped stitch — A manufacturing defect where one stitch was not secured properly. The hole looks like a ladder running vertically through the knit. Rare in quality cashmere but common in budget brands.

Method 1: Darning Small Holes (Under 1cm)

Darning is the traditional technique for fixing small holes in knits. It works by weaving new thread across the hole to recreate the fabric structure. For holes under a centimeter, this is the fastest and most invisible repair.

What you need:

• A darning needle (blunt tip, large eye)
• Matching thread — ideally cashmere or merino yarn in a matching color. In a pinch, a matching silk or fine wool thread works. Avoid cotton thread, which does not blend with cashmere's texture.
• A darning mushroom or egg (optional but helpful — any smooth rounded object works to hold the fabric taut)

Steps:

1. Turn the sweater inside out. Working from the inside makes the repair less visible on the outside.
2. Place the darning mushroom under the hole to create a smooth, taut surface.
3. Thread the needle with matching yarn — about 12 inches is enough for a small hole.
4. Starting about 5mm from the edge of the hole, make small running stitches horizontally across the hole, catching the edges on both sides. Keep stitches small and even.
5. Once you have horizontal threads spanning the hole, weave vertically through them in an over-under pattern, again catching the fabric edges 5mm beyond the hole.
6. When the hole is filled, secure the thread on the inside with a few small stitches through existing fabric, then trim the excess.
7. Turn right side out and gently press the area with your fingers to blend the repair into the surrounding knit.

Method 2: The Invisible Stitch (Duplicate Stitch)

For holes in visible areas — the front of the sweater, near the neckline — a duplicate stitch repair is less noticeable than darning because it mimics the original knit pattern.

How it works: Instead of weaving across the hole, you use a needle to trace the path of the original stitches around the hole, pulling the edges together and recreating the knit pattern. This requires matching yarn and a basic understanding of how knit stitches connect.

1. Thread a blunt needle with matching yarn.
2. Starting from the inside, bring the needle up at the base of a stitch next to the hole.
3. Follow the path of the knit — insert the needle behind the legs of the stitch above, then back down at the base where you started. This duplicates one stitch.
4. Continue around the hole, pulling the edges together gently as you duplicate each stitch. Do not pull too tight — the repair should sit flat with the surrounding fabric.
5. Secure and trim on the inside.

This method takes practice. If you have never done it before, try on an old sweater first. The results on cashmere are worth the learning curve — a well-done duplicate stitch is genuinely invisible from normal viewing distance.

Method 3: Felted Patch (For Larger Holes)

For holes larger than a centimeter or in areas where the surrounding fabric is thinned, a felted patch provides more structural support than darning alone.

1. Cut a piece of matching cashmere fabric slightly larger than the hole — an old cashmere sweater in a similar color works perfectly for this.
2. Place the patch behind the hole on the inside of the sweater.
3. Using a felting needle (a barbed needle available at craft stores), repeatedly poke through both layers around the edges of the hole. The barbs on the needle tangle the fibers of the patch with the fibers of the sweater, bonding them together without thread.
4. Continue needle felting until the patch is securely bonded and the hole edges are blended into the patch.
5. From the outside, use the felting needle to smooth the surface so the patch blends visually.

Felted patches are more visible than darning on fine-gauge cashmere, but they are structurally stronger and work well on areas that take stress — elbows, underarms, and hems.

When to Use a Professional

Some repairs are beyond what most people can do at home. Consider a professional reweaver for:

• Holes larger than 2cm in a visible location
• Tears along a seam that need structural re-stitching
• Multiple moth holes that need uniform repair
• High-value cashmere pieces where an invisible repair matters
• Holes in complex knit patterns (cables, ribs) where pattern matching is critical

Professional cashmere repair typically costs $20 to $75 per hole depending on size and location. For a sweater that cost $200 or more, this is almost always worth it compared to replacing the garment. Search for "invisible mending" or "reweaving" in your area — these specialists work on cashmere regularly.

Preventing Holes in the First Place

Most cashmere holes are preventable:

• Always wash before storing. Body oils and food residue attract moths. A clean sweater is far less likely to be eaten than one stored with invisible contaminants. Our washing guide covers the full process.
• Use cedar blocks or lavender sachets in storage. These deter moths naturally without the chemical smell of mothballs. Replace cedar blocks every six months — once the scent fades, they stop working.
• Store in breathable garment bags or sealed containers. This creates a physical barrier against moths. Avoid sealed plastic, which traps moisture.
• Remove jewelry before putting on cashmere. Rings, bracelets, and watch clasps snag fibers and create the starting point for holes. Put the sweater on first, accessories second.
• Rotate your cashmere. Wearing the same sweater repeatedly without rest causes friction damage at stress points. Giving fibers 24 to 48 hours between wears lets them recover their shape and reduces wear in any single area.
• Address thinning early. If you notice the fabric getting transparent at the elbows or underarms, reinforce with a felted patch before a hole opens. Prevention is easier and less visible than repair.

For more on keeping your cashmere in top condition, see our guides on cleaning cashmere and identifying quality cashmere that resists wear.