The On Cloudflyer made weatherproof. That’s the basics of the On Cloudflyer Waterproof. But of course, it’s anything but basic; it’s the best possible support in an ultralight package. It’s our patented CloudTec® with Helion™ foam. It’s a more stable stance thanks to a wider surface area. It’s specially designed Clouds in the rear that help avoid inward rotation, yet promote a natural transition. And of course, it keeps your feet dry in rainy conditions thanks to a 100% wind and waterproof membrane. And not forgetting reflective night safety details in the front, rear, and on the side of all cloud elements. Basically, it’s ready to run no matter what the forecast says.