* New Action Form composite provides for a reinforced outer shell that is fully heat moldable for a custom fit * Duratex liner provides a good balance between durability and moisture wicking for long-term comfort * Fiberglass Composite exhaust outsole maximizes energy transfer and delivers a reactive feel * Pro injected foam and felt tongue with added lace bite protection comfort and durability * Speed Blade 4.0 holder * Speed Blade Stainless runner