How to Re-Waterproof a Snowboarding Jacket That's Started Leaking

There’s nothing quite like the feeling of a perfect powder day—until you feel that first, unmistakable chill of a leak in your jacket. A waterproof snowboarding jacket is your first line of defense against the elements, keeping you dry and comfortable so you can focus on the ride. But over time, even the best gear can lose its water-repellent magic due to dirt, oil, wear, and repeated exposure. The good news? With a little care, you can often restore that performance and extend the life of your jacket for many more seasons.

Step 1: Diagnose the Problem

First, let’s make sure we’re treating the right ailment. Is your jacket actually leaking, or is it just wetting out?

• Wetting Out: The outer fabric gets saturated with water. It looks dark and soaked, feels heavy, and while moisture isn't necessarily leaking through to you, it can compromise breathability and feel clammy. This usually means the Durable Water Repellent (DWR) coating needs refreshing.
• Actual Leaking: Water penetrates through the waterproof membrane to the inside. This is more serious—caused by a damaged DWR layer allowing the membrane to be overwhelmed, or by physical damage like a tear or seam tape failure.

For most cases of moisture intrusion, rejuvenating the DWR is the solution. If you have physical damage, that will require patching or seam sealing.

Step 2: The Essential First Step: A Deep Clean

You cannot waterproof a dirty jacket. Dirt, body oils, sunscreen, and ski wax clog the microscopic pores of the waterproof membrane and coat the fibers, preventing any water repellent treatment from bonding correctly.

1. Check the Care Label: Always start here. It’s your jacket’s instruction manual.
2. Close All Zippers and Velcro: This protects the fabric and other garments.
3. Use a Technical Gear Detergent: Avoid standard detergents, fabric softeners, or bleach. These can leave residues that attract water and permanently damage the technical fabrics. A cleaner made for technical outerwear is formulated to rinse completely clean.
4. Wash: Use a front-loading washing machine. Run a double rinse cycle if possible to ensure all soap is removed.
5. Dry Thoroughly: This is critical! Heat is required to reactivate and redistribute many DWR treatments. Tumble dry on a low or medium heat setting. If air-drying is your only option, note that some DWR renewals require heat, so you may need to follow up with a tumble dry later.

Step 3: Reapplying the DWR (The Re-Waterproofing Step)

Once your jacket is impeccably clean and dry, it’s time for the main event. You have two primary options:

A. Wash-In Waterproofing

What it is: A liquid solution added to the wash cycle that coats the entire garment, including hard-to-reach areas like seams.

Best for: Overall refresh of DWR on jackets where the coating is evenly diminished. It’s great for convenience and full coverage.

How to do it:

1. Pour the recommended amount of wash-in solution into the detergent dispenser of your clean washing machine.
2. Run a warm wash cycle with your clean jacket.
3. Crucially, tumble dry immediately on low/medium heat to cure the treatment.

B. Spray-On Waterproofing

What it is: A topical spray applied directly to the outer fabric.

Best for: Targeted treatment, spot repairs, or for jackets where only the high-wear areas (shoulders, sleeves) need attention.

How to do it:

1. Ensure the jacket is clean and dry. Hang it in a well-ventilated area.
2. Spray evenly from about 6-8 inches away, covering the entire exterior fabric. Pay extra attention to high-wear zones.
3. Use a clean, damp cloth to gently wipe away any excess to prevent a sticky residue.
4. Tumble dry on low/medium heat to set the treatment.

Step 4: Testing and Maintenance

• The Water Bead Test: After treatment and drying, sprinkle water on the jacket. It should bead up and roll off. If it soaks in, the DWR may need another application.
• Ongoing Care: Wash your jacket with technical cleaner periodically, before it gets heavily soiled. Reapply a DWR treatment once or twice a season. Always dry on low heat after washing—this alone can often revive a flagging DWR.

What If It’s More Than Just DWR? Addressing Physical Damage

If you’ve cleaned and re-treated the DWR and still get leaks in specific spots:

• Seam Leaks: If the factory-applied seam tape is peeling, you can use a seam sealant designed for waterproof fabrics. Apply it carefully to the inside of the seam.
• Small Tears or Punctures: A quality adhesive repair patch, applied to a clean, dry area on the inside of the jacket, can often save the day.

Getting out there is about the experience—the cold air, the deep turns, the shared laughs on the lift. Don’t let a leaky jacket dampen that spirit. With this simple process, you can reclaim that dry, confident feeling and get back to finding the fresh tracks. A well-maintained jacket isn't just gear; it's a trusted partner for every adventure, season after season.