Feb 23, 2013 Inov-8 Fit FIT PRECISION NATURAL ENDURANCE WOMENS PRECISION A precise fit ensures minimal internal movement when contouring, ascending and descending. Ideal for racing on any terrain and all off trail activities. NATURAL Based on the shape of the foot, this is our most natural fit. More room in the toe box allows the toes to spread. ENDURANCE Generous fitting and offering a more comfortable style. Ideal for training and long distances particularly on trails. WOMENS Designed to match the unique shape of the female foot with a narrower heel. Available on Endurance and Natural.