The Tenaya Spherical helmet from Giro sets a new standard in performance. Its modern styling and advanced technical features offer a very practical fit, optimum comfort and reassuring protection. Tenaya Spherical's hybrid construction pairs the strength of the rigid upper with a lower shell, a system that allows the Tenaya Spherical to provide durability at a featherweight. This type of construction also includes a Plus Max EPS foam liner that provides warmth as well as shock absorption. The Tenaya Spherical helmet features adjustable ventilation, which effectively manages airflow through a simple control knob. The vertical adjustment allows you to customize the fit without deviation according to the type of your glasses and the shape of your head. The Tenaya Spherical helmet has a magnetic pressure fastening system. The magnet makes it easy to open and close, and the snap-in design ensures a continuous lock. Its spherical technology provides modern style and effective protection, all without the bulk of the weight. Tenaya is armed with exclusive Spherical Technology, which, combined with its two-piece construction, reduces rotational energy on impact.