Repairing Pilling on Merino Knitwear: A Practical Guide

Quick answer

To fix merino pilling, lay the garment flat and use a fabric shaver or fine sweater comb with light, short strokes in one direction. Stop when the surface is smooth; do not shave down to the yarn core. For prevention, rest your knitwear between wears and wash it inside out on a gentle cycle.

Why Merino Pills (and Why It's Not a Defect)

Pilling happens when short fibres work loose from the yarn and tangle into small balls. Merino is a fine wool, so it can pill more readily than coarser fibres, especially in high-friction areas like underarms, cuffs, and where a bag strap rubs. This is normal wear, not a sign of poor quality. The first pills usually appear after a few wears and then diminish as the loose fibres are shed. Regular removal keeps the surface neat without thinning the fabric.

How to Remove Pills Safely

Start with a clean, dry garment. Turn it inside out and lay it flat on a hard surface. A battery-operated sweater shaver is the fastest tool for larger areas; hold the fabric taut and glide the shaver in short, overlapping passes. For small, tight pills or delicate knits, a fine-toothed sweater comb or a clean, dry pumice stone works well. Work in one direction and check your progress often. Never press hard or hold the shaver in one spot. After shaving, use a lint roller or a piece of tape to lift away the fuzz. If you are unsure, test on an inside hem first.

Preventing Future Pilling

Give your knitwear a day of rest between wears so the fibres can recover. Wash merino inside out on a cold, gentle cycle with a wool-safe detergent, or hand wash if the care label recommends it. Avoid the dryer; lay flat to dry. Reduce friction by not wearing a backpack or heavy bag against the same spot daily. For sweaters, fold rather than hang to prevent shoulder distortion. Store clean and dry, and use a sweater comb every few wears to catch pills early.

When to Stop and Replace

If pilling continues after several removal sessions and the fabric feels thin or you can see through it, the yarn may be worn out. Holes or broken fibres that appear after shaving mean you have removed too much. At that point, further shaving will only make it worse. Consider mending small holes with a wool darning needle, or repurpose the garment. If the pilling is widespread and the knit has lost its structure, replacement is the practical choice.

Diagnose Your Pilling Problem

• Small, loose pills after first few wears: This is normal shedding of short fibres. Remove with a sweater comb or shaver using light strokes. If pills return within a week, move to prevention steps.
• Pilling in high-friction zones only (underarms, cuffs, bag strap): Friction is the main cause. Rotate your garments, avoid constant rubbing, and shave those areas gently. If the fabric underneath feels intact, keep the garment.
• Pilling all over with thinning fabric: The yarn is likely worn out. Shaving further will create holes. Stop and consider mending or replacing. If you see light through the fabric, replace it.

Products built to resist pilling

• Everyday Sweater: Made from EcopossumTM blend of 50% Merino, 40% Possum and 10% Mulberry Silk, with saddle shoulders and ribbed cuffs and hem. The possum and silk fibres add strength and smoothness, which can help the sweater hold its shape and show fewer pills over time.
• Cushion Sole Socks - Black: 70% Merino, 27% Nylon, 3% Elastane, with a cushioned sole and comfort band. The nylon and elastane blend makes these socks more durable in high-friction areas like heels and toes, so they resist pilling better than pure wool socks.