Asics Training Conviction X 2 Womens Black Running TrainersDebuting a redesigned seamless upper and improved fit, the Conviction X 2 crushes those high intensity workouts. The firm, flat heel structure provides stability during heavy lifts while the integrated Lace Garage technology minimizes distractions. To keep you dry and comfortable during extra long sweat sessions, this model includes a perforated sockliner that promotes breathability.