DESIGN: Patented Ergo Air® injected nylon/fiberglass outsole providing extreme ventilation IN-SHOE COMFORT: HRS-90 reinforced with 0.4 mm membrane heel retention allows you to maintain heel positioning and reduce the loss of power Breathable and ventilated insole X-Comfort Zone allows the foot to swell up to 5 mm while riding eliminating hot spots and discomfort DURABILITY AND TRACTION: X-Comfort Zone - Power Zone: Increased arch support and power transfer Double-adjustment ratchet and hook and loop strap for a better adjustment allowing feet to hold firmly in place No cleats included with shoe