The Cloudnova X sneakers by On feature a soft mesh upper with wide weave for increased breathability. They have a front lacing system, pull tab on the tongue and heel, contrasting logo on the side, and an X-shaped Speedboard® for added flexibility in the forefoot. The dual-density Helion&trade Superschiuma provides comfort and stability, while the lined interior has a removable insole. The entire sole is equipped with CloudTec® Size and Fit - Heel Height = 3 cm,