WEIGHING A SCANT 215G PER SHOE, THE RACE SPECIFIC IRON MYTHOS FEATURES THE UNIQUE AXCELLER SYSTEM, A COILED WIRE WITHIN THE SOLE THAT STORES ENERGY FROM THE HEEL STRIKE AND FOOT ROLL PERIOD. THIS STORED ENERGY IS THEN RELEASED IN THE TAKE OFF/ FLIGHT PERIOD, INCREASING THE LENGTH OF EACH STRIDE.

THE LIGHTWEIGHT AIR MESH UPPER INCLUDES AN ANTI BACTERIAL LINING, ELASTIC LACES WITH A CORDLOCK, A RETAINING VELCRO STRAP PLUS PULL-ON FRONT AND REAR TABS, PERFECT FOR QUICK TRANSITIONS.