How to Waterproof Hiking Boots | The Durable Fix

Waterproofing hiking boots requires cleaning them, then applying the right treatment for the boot’s material.

Waterproofing hiking boots comes down to maintenance: the treatment you apply will not penetrate through dirt, and the wrong product for your boot’s material simply won’t work. A day spent hiking in wet socks is usually caused by a worn-out or mismatched treatment rather than the boot itself. This guide walks through the full process, so you can apply the protection that keeps water on the outside where it belongs.

Clean The Boots First

You cannot waterproof over a layer of dried mud. The treatment needs to bond directly to the leather or fabric, so your first step is removing anything that sits between the two. This is a crucial part of learning how to waterproof hiking boots properly.

Start by removing the laces, which lets you clean under them and reach the tongue where leaks often begin. Use a soft brush to knock away loose dust and dirt. For heavier grime, rinse the boots with water; if they feel too dry for the water to penetrate the leather, soak them thoroughly, as a quick rinse alone may not get deep enough to properly clean the material.

• Remove the laces to expose the leather beneath them.
• Brush off dry dirt with a soft brush.
• Rinse or soak boots that are caked in mud or very dry.

Once the boots are clean, you are ready to apply your waterproofing treatment.

Match The Treatment To The Material

This is the single most common mistake that ruins a brand-new pair of boots. Every boot material absorbs a different kind of treatment: a wax for full-grain leather will not soak into a nubuck surface properly, and a spray made for fabric boots will not hold up on smooth leather.

The table below breaks down which product class works for each material. You will need to pick the one that matches your boot’s upper, and treat the entire upper, not just the toes or the seams.

Examples from REI’s lineup illustrate the difference: a wash-in or spray product like Fabric & Leather Proof suits mixed-material boots, while Waterproofing Wax for Leather belongs on full-grain leather boots. For nubuck or suede, always reach for a dedicated Nubuck & Suede Proof product. Wax-based products are generally reserved for full-grain leather, while sprays and creams are the safer option for suede, nubuck, and fabric boots.

Apply And Dry The Treatment

Now that you have the right product, you need to apply it to boots that are clean and damp, not bone dry. A damp surface lets the treatment draw into the material more effectively. If your boots are dry, dampen them with a cloth before you begin.

For spray-on treatments, hold the can about 6 inches from the boot and apply an even coat to wet footwear. Pay extra attention to the seams and stitching, since that is where leaks almost always begin. After a couple of minutes, wipe off any excess product and let the boots dry naturally.

For wax-based formulas, the method differs slightly. Squeeze small spots of wax directly onto the upper, then use a cloth or your fingers to rub it evenly over the whole surface. Aim for a thin, consistent layer; you can add a second coat after it dries if you want extra protection.

Key Drying Rules

• Avoid direct heat and sunlight, which can cause leather to crack and soles to de-bond.
• Air-dry in a ventilated, low-humidity space at normal room temperature.
• Use a fan or newspaper to speed drying; both are safe and effective.

Over-waxing is a common mistake that hardens the leather and makes it brittle, so it is better to start with a light layer and build up only if your boot needs more protection.

When To Waterproof And What To Avoid

You should reapply waterproofing whenever water stops beading on the surface and starts soaking in, or at the start of a wet hiking season.

Always apply treatment to clean boots and follow the instructions on your specific product, since application steps vary by brand. Work in a well-ventilated space if you are using a spray, and protect the area from overspray. Remember to check the seams where water sneaks in fastest; you should cover those creases and stitching just as carefully as the main panels.

If you are shopping for a new pair of shoes that can handle wet trails from day one, our roundup of the best athletic hiking boots for wet trails tests the top models side by side.