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