Shrinkage footprint reduction technology. LACING: speed zone lacing systemfor true zonal lacing control. LINER: New imprint 3X liner with new rad pad for lace comfort. Cushioning: Vibram Ecostep recycled rubber outsole with rubberice spikes and dual zone cushioning system featuring B3 gel in the heel and EVA in the toe. FLEX & RESPONSE: Firm flex thin profile 3D molded tongue, dual axis power spinebackstay, removable rider adjustable Flex tongue insert and new super grip toe. COMFORT: level 2 molded EVA footbed with ESS support shank and aegis antimicrobial coating. Ecosmart recycled mesh upper materials.