The elite rd features the same revolutionary 11 adaptive fit system as the pro leader which conforms to your unique foot shape to eliminate hot spotsrecently rated 710 by roadccquotpearl izumi39s elite road iv shoe uses a lot of technology that39s trickled down from its range topping pro leader so for your 150 you39re getting a super stiff carbon sole and the excellent boa retention systemquot read morefully bonded upper eliminates uncomfortable seams and hotspots bi