Outdoor Gear
Repairing Small Tears in Waterproof Jackets
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Harriet Green
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30 August 2026
6 mins read
Why Small Tears Deserve Proper Attention
A two-centimetre tear on the shoulder of your jacket is easy to ignore, especially when it is hidden under a rucksack strap and the jacket still shrugs off a shower. But a waterproof shell is a system, not just a fabric. Once the outer face is breached, water finds the gap, wicks along the lining, and you end up with a cold, damp patch in exactly the place you least want one — usually somewhere exposed on a Lakeland ridge in a sideways drizzle.
The good news is that a clean, well-applied patch will almost certainly outlast the jacket itself. In most cases you will not need a sewing machine, a specialist repair service, or a new jacket. You need half an hour at the kitchen table, a steady hand, and a little patience with the preparation. Here is how to do it properly.
Assess the Damage Before You Reach for the Tape
Not every tear can be taped, and trying to patch the wrong one wastes time and material. Have a close look at the damage in good light, ideally with the jacket turned inside out as well.
- A clean slit or puncture — a thorn snag from gorse, a crampon nick, an ember hole from a campfire — is ideal for tape repair.
- A torn seam is a different job. Tape over a failing seam will not hold under tension; that one needs stitching or a professional repair.
- A tear with frayed, curling edges or missing fabric needs a patch larger than the hole plus a backing piece, or a proper heat-applied repair patch.
- Delamination — where the inner membrane has separated from the face fabric — cannot be fixed with tape alone. The bubble will keep spreading.
Also check the zips, the hood adjusters and the cuff tabs while you are at it. Small abrasion points at the shoulders and hips, where pack straps and hipbelts rub, are the most common places for wear to begin.
Clean the Area — Properly
This is the step everybody skips, and it is the reason most patches peel off within a month. Repair tape bonds to clean, dry, contaminant-free fabric. Dirt, sweat salts, sun cream residue and, above all, the durable water repellent (DWR) finish on the outer face are all working against you.
Wipe the area around the tear — a good five centimetres in every direction — with isopropyl alcohol on a lint-free cloth, or with a dedicated gear-cleaning wipe. Work from the centre outwards so you do not drag grime into the hole. Do not use household solvents, white spirit or nail polish remover; they can strip dyes and damage the membrane.
If the jacket is generally grimy, wash it first. A technical wash on a gentle cycle, no fabric conditioner, followed by a tumble dry on low or a cool iron through a cloth, will clean the fabric and reactivate the DWR. Do not apply tape to a jacket straight out of the wash, though — see the next section.
Dry, Warm and Prepare the Surface
Moisture is the enemy of adhesion. Let the jacket air-dry completely, then give the repair area a final warm-up. Fabric at room temperature or slightly above bonds far better than cold fabric, and this matters enormously if you are repairing in a cold garage or a tent porch.
- Dry thoroughly — inside and out, including the lining behind the tear.
- Warm the fabric gently with a hairdryer on a low setting, holding it a good 20 centimetres away. You want warm, not hot.
- Flatten the tear so the edges sit as close together as possible. Trim any stray threads with small scissors rather than pulling at them.
- Support from behind if you can. Slip a smooth, firm object — a piece of card or a clean chopping board — inside the jacket so you have something to press against.
Applying the Repair Tape
Self-adhesive nylon repair tape is the fell walker's standby, and for good reason. It is light, it stays flexible in the cold, and it can be cut to any shape. Buy it in a roll rather than pre-cut strips so you always have the size you need.
- Cut with rounded corners. Square corners catch on straps and pack fabric and start to lift. A rounded or oval patch stays put.
- Allow a generous overlap — at least two centimetres of tape beyond the tear on every side.
- Peel and place without stretching. Lay one edge down first, then smooth the rest across, pressing out air bubbles as you go.
- Press hard, then press again. Use your thumbnail, the back of a spoon, or a roller. Work from the centre outwards for a full minute. Pressure and warmth are what activate the adhesive.
- Leave it alone. Give the patch 24 hours to settle before you wear the jacket, and avoid washing it for at least a week.
For a tear longer than about five centimetres, or one in a high-stress area such as the shoulder, apply a patch to the inside as well as the outside. The inner patch takes the strain; the outer one keeps the weather out.
Aftercare and Knowing When to Seek Help
Once the patch is on, treat the jacket kindly for a while. Repoofing the whole garment with a wash-in or spray-on treatment after a repair is worthwhile, as the cleaning process will have dulled the DWR. A well-maintained jacket beads water and stays breathable, which matters more than most people realise on a long, sweaty climb.
Carry a short strip of repair tape wrapped around a pencil stub in your pack. It weighs almost nothing and has rescued many a jacket on a blustery col. If the damage is structural — a torn seam, a failed zip, or a large rip in the membrane — it is worth sending the jacket away for a professional repair rather than improvising. A good shell, looked after and patched thoughtfully, will give you many more seasons on the fells.
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