Carbon fiber and fiberglass offer demanding cyclists like you the stiffness you need combined with an ultralight design. The micrometric system that guarantees you precision closure. You control how pressure on the instep strap is released step by step, even when racing. Its the Northwave ventilation system with large vents that lets your feet breathe: the lower vent channels air inside the sole, while the side vents guarantee a supply of fresh air. Omega Heel. More ventilation, grip and heel protection even with full power downstrokes. The rigid profile offers stability combined with an ultralight design. EVA and microfiber offer lightness, sole support and the perfect degree of stiffness to transmit all your power to the pedals.