Nikwax

Polar Proof Solution

What Our Gearhead® Experts Are Saying:

"I use PolarProof on any fleece that starts feeling soggy in wet weather—especially my midlayers for shoulder-season hikes. After a wash with this, fleeces shed water instead of soaking it up, stay warmer when conditions turn damp, and feel lighter on long climbs. It’s super easy to run through the washing machine, and the improvement is immediately noticeable."

Fleece is prized for warmth, breathability, and low weight, but once moisture collects between the fibers, insulation drops fast and the fabric can feel heavy and cold. PolarProof restores durable water repellency to stop that saturation, keeping our fleeces performing the way they should during hikes, rainy transitions, ski tours, or chilly camp evenings.

This wash-in treatment enhances the natural insulating structure of fleece by preventing water from filling the air gaps that trap warmth. The formula works evenly throughout the garment, reviving loft, reducing weight gain, and maintaining breathability even in damp conditions. PolarProof helps our most-used layers stay warm, dry, and ready for unpredictable mountain weather.