How to Waterproof Leather Boots

Ever wondered what Makes a Boot Waterproof and how can you tell if a boot is 100% Waterproof?

Let’s Learn about Leather and Its Waterproof Qualities

Leather is a durable and versatile material, valued for its strength, and flexibility. However, despite its many advantages, leather is not naturally waterproof. It is a porous material derived from animal hides, meaning that it can absorb water, which may lead to damage like stains, cracking, and deterioration over time. To protect leather in wet environments, additional waterproofing treatments are often necessary.

Different types of leather have varying degrees of water resistance. Full-grain leather, for instance, retains its natural grain and is more water-resistant than suede or nubuck, which are more delicate and vulnerable to moisture. Still, even full-grain leather needs protection to withstand heavy or prolonged exposure to water.

Vegan and PU leather is a little more robust when it comes to waterproofing as the material is not quite as absorbent as natural leather, however, eventually, the water will seep through.

To be truly waterproof, you are going to need to purchase boots constructed with a waterproof barrier (semi-permeable membrane) or give the leather a bit of a helping hand to make sure your feet can get through winter and stay dry. So what on earth does that mean?!

How a Semi-Permeable Membrane in Footwear Works

A semi-permeable membrane in footwear such as the Ariat Mens and Womens Dura Terrain H₂O boot and the Mens Workhog, is a specialized material designed to balance two critical functions: allowing air and moisture vapor to pass out while preventing water and external elements from penetrating the shoe. This feature is essential for waterproof yet breathable footwear, commonly used in hiking boots, outdoor shoes, and workwear.

Breathability: The membrane contains microscopic pores that are large enough to allow moisture vapor (sweat) to escape but small enough to block liquid water from entering. This is crucial for keeping the foot dry and comfortable during activities, as it prevents overheating and reduces the build-up of sweat inside the shoe. For instance, membranes like Gore-Tex and eVent use this technology to enhance breathability without compromising water resistance.

Waterproofing: At the same time, the semi-permeable membrane works as a barrier to external water, ensuring that rain, puddles, or snow doesn't seep into the footwear. The material is often laminated to the inner lining of the shoe, creating a durable layer that seals out moisture while maintaining flexibility and comfort. This property makes semi-permeable membranes ideal for use in footwear intended for harsh or wet environments.

Durability and Comfort: These membranes are designed to last through extended wear and various conditions. While maintaining their waterproofing properties, they are also lightweight, ensuring that the footwear remains comfortable for prolonged use.

Semi-permeable membranes provide an essential balance between keeping feet dry from external moisture while allowing breathability, offering both comfort and protection in soggy conditions.

A fully waterproof boot, with a semi-permeable membrane sounds great right? The reality is, this waterproofing construction is usually found in work boots, hiking and snow, and other types of outdoor boots.

Or you could go for a Gumboot, Rubber Boot, Welly Boot (depending on where you are from), but again rubber or neoprene is great muck boots and Froggers out in the garden or the stables on a crisp morning, but for everyday footwear, well let's face it, its hard to dress them up!

Leather’s waterproof qualities can be enhanced through treatments and coatings. Waxes, creams, and silicone-based sprays can create a protective barrier on the surface of leather footwear, clothing, or accessories. These treatments repel water, preventing it from penetrating the pores while maintaining the leather’s breathability. However, waterproofing treatments need to be reapplied periodically, especially after exposure to harsh conditions or after cleaning the leather.

Tanned leather, specifically chrome-tanned leather, offers slightly better water resistance due to the chemicals used in the tanning process, which make the fibres less absorbent. Nonetheless, proper care, conditioning, and regular waterproofing treatments are essential to maintain leather’s durability and protect it from moisture damage, ensuring it remains a long-lasting and reliable material.

How to Waterproof Leather Footwear

Waterproofing leather footwear is essential to prolong its lifespan and protect it from moisture damage. Here’s how to effectively waterproof your leather shoes or boots.

1. Clean the Leather

Before applying any waterproofing treatment, it’s important to clean the leather thoroughly. Use a soft brush or a damp cloth to remove dirt, dust, and grime. For stubborn stains, a leather cleaner or mild soap can be used. Ensure the leather is completely dry before moving to the next step.

2. Choose the Right Waterproofing Product

There are different types of waterproofing products available for leather footwear, including waxes, sprays, and creams. The type of product you choose depends on the type of leather and the level of waterproofing you need. For example, beeswax-based treatments offer heavy-duty protection for outdoor or work boots, while silicone-based sprays are more suited for casual shoes that need a lighter, more breathable layer. Waproo and Blundstone both make very reliable waterproofing sprays.

Don’t use wax or oil-based waterproofing on suede, nubuck or distressed leather, you will end up with patchy boots.

3. Apply the Waterproofing Treatment

For wax or cream-based products, use a clean cloth to rub the treatment into the leather using circular motions. Ensure even coverage, paying special attention to seams and stitching, where water is more likely to penetrate. If you’re using a spray, hold the can about 6-8 inches away from the shoe and apply an even coat over the entire surface. Allow the product to absorb into the leather as per the manufacturer’s instructions.

4. Let It Dry and Buff

Once applied, let the footwear dry naturally. After drying, buff the leather with a clean cloth to restore its shine and texture. Regularly reapply the waterproofing treatment, especially after heavy use, to maintain protection.

The final say about Waterproofing Leather…..

Waterproofing not only protects leather footwear but also enhances its longevity, ensuring it stays durable and stylish through all weather conditions. Look after your boots, waterproof, clean and condition regularly and your boots will last so much longer, saving you money and the time to get out and buy new boots. A win-win for me!