
How to Re-Waterproof Your Outdoor Gear and Understanding Waterproof Technology
Your trusty outdoor gear keeps you dry, warm, and comfortable when you’re out adventuring in the elements. But over time, even the best waterproof gear can lose its effectiveness. Dirt, grime, and general wear can cause your jacket, pants, or tent to stop repelling water the way it once did. Additionally, understanding the differences between waterproof and water-resistant gear can help you make better choices for your outdoor needs. This guide combines the best practices for re-waterproofing your gear and essential information about waterproofing technology.
Waterproof vs. Water-Resistant: What’s the Difference?
The terms "waterproof" and "water-resistant" are often used interchangeably, but they represent different levels of protection against water. Here’s what you need to know:
- Waterproof: Fully impermeable to water, designed to keep you completely dry in heavy rain or snow.
- Water-Resistant: Repels water to a certain extent but may not hold up under prolonged exposure to wet conditions. Ideal for light rain or high-activity scenarios where breathability is key.

Step 1: Clean Your Gear the Right Way
Before re-waterproofing, your gear must be clean. Dirt and oils can clog waterproof membranes or coatings, reducing their effectiveness.
What to Do:
- Use a Technical Cleaner: Regular detergents contain additives that can harm waterproof fabrics. Use a specialized cleaner like Nikwax Tech Wash or Granger’s Performance Wash.
- Machine Wash or Hand Wash: Check the care label. Most waterproof gear can be washed on a gentle cycle with cold water. Hand washing is best for delicate items.
- Avoid Fabric Softeners: They can clog waterproof coatings and reduce effectiveness.
Step 2: Reapply Waterproofing Treatment
Re-waterproofing your gear involves applying a waterproof treatment. Choose between spray-on and wash-in methods based on your gear’s needs.
Choosing the Right Treatment:
- Spray-On Treatments: Ideal for high-use areas like shoulders and elbows. Great for maintaining breathability.
- Wash-In Treatments: Best for evenly waterproofing an entire garment. This method is quick and ensures full coverage but may reduce breathability in some fabrics.
How to Apply:
- For spray-on treatments, lay the gear flat and apply evenly, focusing on high-wear areas.
- For wash-in treatments, add the recommended amount of solution to your washing machine or a basin of water. Soak or run a gentle cycle as directed.
Step 3: Dry Your Gear Properly
Drying is a critical step in the waterproofing process. A bit of heat helps activate the treatment and lock it into the fabric.
Tumble Dry:
- Use a low-heat setting. High heat can damage waterproof coatings.
No Dryer? No Problem:
- Hang your gear to air dry, then use a hair dryer on a low heat setting to carefully warm the fabric, focusing on seams and high-use areas.

Understanding Jacket Construction and Technologies
The construction of outdoor jackets and the fabrics used play a crucial role in waterproofing and breathability.
Two-Layer vs. Three-Layer Jackets:
- Two-Layer Jackets: Include a durable outer shell and a waterproof membrane. Lightweight but less durable.
- Three-Layer Jackets: Add an interior protective layer for comfort and durability. Bulkier but offer enhanced performance.
Seam Sealing:
- Fully Taped Seams: Every seam is sealed for maximum waterproofing.
- Partially Taped Seams: Focused on high-risk areas like zippers and shoulders to allow for better ventilation elsewhere.
Breathability:
- Essential for high-output activities. A jacket with a high AK (Air permeability) rating, like 15K, offers superior breathability to keep sweat from building up.
Fabric Technologies:
- GORE-TEX: A membrane, created by the company GORE, known for excellent waterproofing and breathability and is licensed and used by many apparel name brands.
- eVent: A membrane fabric known for its high breathability while still being waterproof. Ideal for intense activities.
- Many apparel name brands have their own waterproof/breathable membrane fabric technology. Such as- Patagonia's H2No, Marmot’s Membrain, Black Diamond’s BD Dry, and PerTex is used by Rab and others. And there are many other options

Additional Tips for Maintaining Waterproof Gear
- Store Properly: Keep your gear in a cool, dry place. Avoid long-term compression, which can damage waterproof membranes.
- Inspect for Damage: Regularly check seams and high-movement areas for wear and tear. Repair delaminated or peeling sections promptly.
- Reproof as Needed: If water stops beading on the surface, it’s time to reapply a durable water repellent (DWR) treatment.
- Specialized Care for Tents and Backpacks: Use products designed for nylon fabrics or apply seam sealer to protect against leaks.
- Avoid Overwashing: Spot clean when possible and save full washes for heavily soiled items.
How Weather Conditions Impact Waterproofing Performance
Different weather conditions can impact how well your gear performs, even if it has been recently waterproofed. Cold temperatures, for example, can make certain fabrics less pliable, potentially compromising their ability to repel water effectively. On the other hand, prolonged exposure to UV rays can degrade waterproof coatings over time. To mitigate these effects, consider rotating your gear based on seasonal needs and applying UV-protectant sprays to prolong the life of your items. Additionally, always carry a compact spray bottle of waterproofing treatment during extended trips to reapply protection on the go if needed. Preparing for these environmental challenges ensures your gear remains dependable, no matter the conditions.
The Bottom Line
Re-waterproofing your gear and understanding the science behind waterproofing technology can help you stay dry and comfortable on all your adventures. Whether you’re biking through light rain or hiking in a downpour, having the right gear—and knowing how to care for it—makes all the difference. With proper maintenance, your gear will continue to protect you season after season. Happy adventuring!