Carbon EXO JET sole for light weight (11oz/shoe) with maximum rigidity. Each layer of the sole is vented for excellent toe-to-heel airflow. A Heel Retention Strap is designed to keep your heel in place during powerful stroking, maximizing power transfer. Breathable, microfiber leather upper provides a custom fit for ultimate comfort and support, and mesh panels incorporate ventilation. 2 reverse velcro straps are reinforced with Kevlar band. Super fast in transtion, without compromising support. Replaceable rear bumpers. Includes two sets of insoles: Cool Stuff and Hot Stuff, so you can keep your cool or heat it up as the conditions dictate. This shoe seems to be made for the everyday rider with a more "normal" shoe fit without being too narrow or too wide. The arch is slightly higher than previous LG shoe models. Get a pair and see what Carbon can do for you.