In-mold carbon reinforcement fuses a tough outer microshell to the helmet's liner to create a lighter, cooler and tougher helmet. Interior strap anchors provide a more secure fit. Luxurious Roc Loc 4 ensures a perfectly dialed fit. Roll Cage reinforcement provides an extra measure of strength and integrity that you'll never notice (unless you need it). Superior technology and Tour de France-proven performance are why so many elite riders count on the Atmos. Twenty-six Wind Tunnel vents channel airflow for maximum cooling.