The Cloudstratus 3 is the newest version of On's medium-to-long distance running shoe and bings smart improvements to the inspired design. Built atop On's weight-saving CloudTec and Speedboard foundation, the Cloudstratus' extremely light, breathable upper helps capitalize on the midsole design, and the upper's comfort has improved with a new foam-based lace flange that helps lock in your foot more snugly.