Quick answer: wash your waterproof jacket with a technical wash (not ordinary detergent or fabric softener), rinse well, then tumble dry on low or use gentle heat to reactivate the water repellent finish. If water still soaks in, reproof it.
Why waterproof jackets stop working
Dirt, body oils and detergent residue clog the outer fabric and the durable water repellent (DWR) finish wears off over time. When this happens the fabric "wets out": water no longer beads and runs off, it soaks into the outer layer, and the jacket feels damp and stops breathing. In many cases the waterproof membrane underneath is fine and just needs cleaning and reproofing.
How to wash a waterproof jacket
- Check the care label: follow the instructions and temperature shown.
- Empty pockets and fasten all zips and flaps.
- Use a technical wash: use a cleaner made for waterproofs. Avoid standard detergent and fabric softener.
- Wash at a gentle temperature (usually 30 to 40 degrees) on a delicate or synthetics cycle.
- Run an extra rinse to remove all residue.
How to dry and reactivate the DWR
After washing, tumble dry on a low heat if the care label allows it. Gentle heat helps reactivate the DWR finish. If you cannot tumble dry, hang the jacket to dry and then warm it gently as advised on the label, for example with a low iron and a cloth between the iron and jacket. Never use high heat on membrane jackets unless the label says it is safe.
How to reproof
Test by sprinkling water on the jacket. If it beads and rolls off, you are done. If it soaks in, apply a wash-in or spray-on reproofing product to the clean, damp jacket, following the product instructions, and then dry as recommended. Concentrate spray-on treatments on high-wear areas such as shoulders, cuffs and hood.
| Problem | Fix |
|---|---|
| Water soaks into outer fabric | Wash, dry with gentle heat, then reproof |
| Jacket smells or feels clammy | Wash with technical cleaner |
| Leaks at seams or membrane damage | Repair, or replace the jacket |
What about wax jackets and other fabrics?
Wax jackets need re-waxing rather than reproofing. Follow our wax jacket care guide. To understand how waterproof fabrics work, read the science behind waterproofing.
When to replace your waterproof jacket
If the jacket leaks at the seams, the membrane is peeling or cracked, or it fails to bead water even after washing and reproofing, it is time for a new one. Browse our waterproof clothing, men's jackets and coats and women's jackets and coats.
Frequently asked questions
How often should I wash a waterproof jacket?
Wash when it is dirty, or when it stops repelling water. For regular use, once or twice a season is typical. Washing does not harm a waterproof jacket when done correctly.
Can I use normal washing powder?
It is best not to. Standard detergents and fabric softeners leave residue that clogs the fabric and reduces breathability and water repellency.
Does washing ruin waterproofing?
No, dirt does more harm than a wash. Cleaning restores performance, provided you use a suitable product.
How long does reproofing last?
It varies with use and weather. Re-test with water occasionally and reproof when beading stops.
Find more advice in The Field Guide.
