inForm Pro last delivers an ergonomically optimized, high-performance fit. Silver Series carbon/fiberglass composite sole. Features a no-pull-thru top strap and a set-it-and-forget-it forefoot strap. Stiffness index 10 of 14. Micro-fiber uppers with flow-thru mesh panels. Easy-to-grab heel loop for quick entry. Medial side rubber band anchor allows faster entry for pre-mounted shoe.