The Lazer Tardiz 2 is an Aerodynamic Race Helmet: Ideal for triathlon and time trial. Built For Speed: Teardrop shape and dimpled tail section reduce drag so you go faster. Keep Cool: Airflow through the helmet and a vent so you can squirt water directly on your head. Versatile Aerodynamics and Ventilation: Choose the closed front cap for maximum aero performance and the vented cap for more airflow. Supremely Comfortable: Lazer’s unique retention system offers a customized fit without pressure points. The aerodynamic Tardiz2 is built for speed. The teardrop shape of the helmet and its dimpled tail section improve airflow, saving you precious watts when you’re racing against the clock in triathlons and time trials. The TS+ fit system ensures a snug and comfortable fit and can be secured with an easy to access dial for fast transitions. The open front allows you to use your favorite eyewear.