Women's On® Cloudsurfer :: A sole-ful journey to cloud 9! Your new Women's On Cloudsurfer are designed to perform at every level of running. Featuring a brand-new computer-optimized technology in the midsole, CloudTec® Phase foam works to collapse in sequence with your stride, giving you a gentle ride from the moment your heel strikes the ground. Not to mention, they're lighter than ever and crafted with water-saving dyes, a comfortable choice for your feet and the planet. And no matter what Mother Nature throws your way, wet or dry, durable rubber pads on the outsole of your Cloudsurfer are ready for it all.