The known comfort of Genius meets a knitted hyper-vented nylon construction. Designed to maintain its shape and structure, the foot is well-stabilized during rides while staying fresh on the warmest days. A carbon/nylon composite sole stiffness 6, Sidi's unique instep closure, and Dyneema high density dials complete the model for a comfortable premium ride experience. -Premium dual layer instruction features one layer for ventilation and a second for durability for a shoe that is both fresh and resistant feeling on the bike -Engineered ventilated upper allows for direct airflow to the foot for greater cooling -Sidi heel counter keeps the foot stabilized -Dyneema dialing system is crafted from high density resin -The carbon composite sole features a stiffness level of 6, combining performance and greater comfort -Sole inserts engineered for durability