Experience the speed of a TT helmet with the cooling comfort of a road helmet with Extima. Designed in the wind tunnel and built for real world riding, Extima deLivers pro-level performance for riders demanding the perfect balance of aerodynamics when riding at speed and ventilation and lightweight when aiming for a QOM a climb. features AeroVent ports that improve aerodynamics and cooling airflow. Team Sunweb's helmet of choice for stages that combine climbing and all out speed.