Washing rain gear in a machine is safe when you use a technical cleaner, close all closures, and follow the care label.
Most waterproof jackets, pants, and shells handle a machine wash fine—if you do it right. The wrong detergent or a missed zipper can wreck the durable water repellent (DWR) finish or the waterproof membrane underneath. The good news: the process takes about an hour and protects a serious investment. Here’s the method that works, the mistakes to avoid, and when to re-waterproof.
What You Need To Wash Rain Gear Correctly
Skip regular laundry detergent. Standard detergents, fabric softener, and bleach leave residues that break down the DWR coating and clog the breathable membrane. Instead, pick a cleaner made for technical outerwear, such as Nikwax Tech Wash, which was designed specifically for waterproof garments.
Before the machine starts, do this quick prep:
- Empty every pocket and brush off loose dirt or grit.
- Close all zippers, snap buttons, and hook-and-loop fasteners so nothing snags the fabric.
- Loosen drawcords and turn the jacket inside out where the care label allows.
- Clean the washing machine’s detergent dispenser, since leftover softener or bleach residue can contaminate the wash.
Running a short empty rinse cycle first clears any residue hiding in the drum—a step several brands including Mountain Equipment and Trespass specifically recommend.
The Right Wash Cycle And Temperature
Most waterproof jackets wash safely at 30°C (85°F) on a gentle or delicate cycle, per guidance from Jack Wolfskin and Rains. If your machine offers a slow spin, use it—high-speed spinning can stress taped seams.
Add the technical cleaner according to its instructions. For a top-loading machine, Nikwax recommends 150 ml of Tech Wash for 1–3 jackets or 250 ml for 4–6; for a front loader, it suggests no more than two jackets with 100 ml. Whatever machine you use, run a thorough rinse cycle so no soap residue remains inside the garment.
Wash rain gear alone or with one or two similar waterproof items. Overloading the drum prevents proper cleaning and can abrade the fabric against itself.
How To Dry And When To Re-Waterproof
Drying depends entirely on the care label. Some brands, including Jack Wolfskin and Rains, recommend air drying completely before storage to prevent mold or mildew. Others, like Mountain Equipment, allow tumble drying on low heat—which can actually reactivate the DWR finish. Check the label; if it says no dryer, hang the garment until fully dry.
After washing, test the water repellency. Sprinkle a few drops of water on the shoulder or sleeve. If the water beads up and rolls off, the DWR is still working. If it soaks in or forms a flat wet patch, the jacket needs reproofing, not another wash. A wash-in treatment like Nikwax TX.Direct Wash-In restores the water-repellent finish; apply it right after cleaning while the fabric is still damp.
| Step | Do This | Avoid This |
|---|---|---|
| Prep | Empty pockets, close zippers and Velcro, clean the soap dispenser | Washing with items that have hooks or rough hardware |
| Detergent | Technical cleaner like Nikwax Tech Wash | Fabric softener, bleach, powder detergent, or all-purpose detergent |
| Cycle | 30°C delicate/gentle with slow spin and extra rinse | Hot water, heavy-duty cycles, overloading the drum |
| Drying | Air dry fully, or tumble low only if the label allows | High heat, hanging in direct sun, storing while damp |
| After care | Test water beading; re-waterproof with a wash-in DWR treatment | Repeating washes hoping to fix water absorption |
Rain gear care follows the same core rules across brands. REI’s guidance echoes the same sequence—clean the dispenser, close all closures, wash and rinse thoroughly—and then recommends a wash-in re-waterproofing treatment if the jacket still wets out. Patagonia’s care guide for waterproof jackets covers the same ground, and Trespass adds the reminder to use a Delicates or Handwash program.
Different fabrics need different care. A PU-coated rain shell, a GORE-TEX jacket, and a DWR-treated softshell each have their own temperature limits and drying rules, so the care label is the final authority. When in doubt, wash cooler and air dry—that combination is safe for nearly every waterproof garment.
Washing rain gear every few wears keeps it clean, but over-washing wears down the DWR faster. Wash when the jacket is visibly dirty or smells, not after every single outing. Between washes, wipe the jacket down with a damp cloth and hang it to air out, which extends the life of both the coating and the membrane.
One more thing: if your rain jacket is due for replacement rather than a wash, a solid women’s rain jacket makes a difference in comfort and breathability. Our picks for the best women’s rain gear cover the top options tested for the outdoors.
FAQs
Can you wash a rain jacket with regular detergent?
You can, but you shouldn’t. Regular detergents, fabric softener, and bleach leave residues that break down the DWR coating and clog the waterproof membrane. Use a technical cleaner made for outdoor gear, and the jacket will keep shedding water much longer.
How often should rain gear be washed?
Wash rain gear when it’s visibly dirty or starts to smell—usually every 5 to 10 wears, depending on how heavily you use it. Over-washing wears down the DWR finish faster, so between washes, wipe the jacket down and air it out instead.
What temperature should you wash a rain jacket at?
Most waterproof jackets wash safely at 30°C (85°F) on a gentle or delicate cycle. Check the care label for the exact limit, since PU-coated fabrics and GORE-TEX shells can have different temperature tolerances. When in doubt, use cold water.
References & Sources
- Nikwax. “How to Clean and Re-Waterproof Your Rain Jacket.” Details on Tech Wash dosage and TX.Direct re-waterproofing process.
- REI Co-op. “Bead Up, Don’t Wet Out: How to Wash Your Waterproof Jacket.” Step-by-step washing guidance and re-waterproofing recommendations.
- Patagonia. “How to Wash a Waterproof Jacket.” Brand-specific care guidance for waterproof outerwear.