Is Wool Waterproof? What to Know Before Wearing It in the Rain
When winter rolls in, many of us reach for our wool coats — not just for their warmth and timeless style, but also for their performance. Wool has earned its reputation as a top-tier technical fiber: warm, breathable, odor-resistant, and moisture-wicking. But what about rain and snow?
Is wool waterproof? Or at least water resistant?
Let’s break it down.
Wool Is Water Resistant — But Not Waterproof
The distinction matters. Water-resistant materials can repel moisture to a certain extent, while waterproof fabrics prevent any water from getting through — even under prolonged exposure.
Wool is naturally water resistant, thanks to the structure of its fibers. The outer layer of each wool fiber is covered in tiny scales and a waxy coating called lanolin, which helps repel water. In light rain or snow, water tends to bead on the surface of the fabric, buying you time to brush it off before it soaks in.
“There is no better fiber than wool; it truly is a miracle fiber.” — Jeanne Carver, Shaniko Wool
That said, wool is not waterproof. In a heavy downpour or prolonged moisture, it will eventually absorb water. Unlike synthetic rainwear, it doesn’t have sealed seams or coatings to block water entirely.
Why Choose Water-Resistant Over Waterproof?
Here’s the trade-off: Most waterproof materials don’t breathe. While they keep water out, they also trap heat and moisture in — which can leave you sweaty and uncomfortable.
Wool, on the other hand, breathes beautifully. It regulates temperature and wicks moisture naturally, making it ideal for cold, dry climates — or for women navigating hot flashes and cold fronts in the same hour. Who needs a sauna in a storm?
Better Weave, Better Protection
Not all wool coats are created equal. The weave of the fabric plays a big role in water resistance. At The Checkroom, we use 100% wool with dense, tightly woven constructions like melton — which naturally improves water repellency without adding chemicals.
A looser weave may feel lighter, but it’s more likely to let water through. So when weather protection matters, the structure of your wool coat matters, too.
How to Get the Most from Your Wool Coat
If you live somewhere with unpredictable weather (hello, Chicago), having more than one winter coat is a smart strategy. Choose your wool coat for dry, cold days — or light snow and mist. Reach for technical outerwear when it’s pouring.
With proper care, your wool coat can last for years and handle light rain without missing a beat.
Want to extend its life? Here’s how to keep your wool coat clean →
Conclusion: Wool Isn’t Waterproof — But It’s Wonderfully Weather Smart
So, is wool waterproof? Not quite. But its natural water resistance, breathability, and thermal performance make it one of the best materials for everyday winter wear. Especially when you invest in 100% wool — responsibly sourced and expertly tailored.
Discover coats made from the world’s best technical fiber.
Shop 100% Wool Coats →
