This race inspired design is known for its comfortable fit and tremendous value and with similar features to the s works prevail like the tri fix webbing system and 4th dimension cooling the women39s propero helmet handles even the most intense efforts on the pavementponytail ready hairport sl fit system with six height positions and micro adjustable dial4th dimension cooling system with mega mouthport for enhanced comfortcomposite matrix internal reinforcement allows larger vents for gre