Not so long ago a fully waterproof jacket that weighed less than 100 grams would have been impossible. But thanks to the revolutionary GORE-TEX® Active fabric with SHAKEDRY™ technology, the Oro easily achieves this milestone: 7mesh chose the lightest, most breathable fabric that GORE-TEX® offers, one that is permanently waterproof for the life of the jacket. The fabric simply shakes off water. And it breathes like nothing else. It's not just the incredible fabric you'll find but a fully engineered bike specific fit. Read more… Intricate patterning reduces seam bulk, a direct-laminated zipper innovated in partnership with their suppliers, a welded raw hem edge, 360-degree reflectivity, and multipurpose vents and pocket. The resulting package weighs in at that incredible 93 grams, size medium. If you ride in all weathers but like to travel light with minimum fuss then the ultra-light and fully waterproof performance of the Oro is going to be exactly what you're after. The future of highly breathable and waterproof jackets has arrived.