The tried and true favorite and bestselling menrsquos helmet in the line the brentwood is certified for both bike and snow sports after linking a few turns on your favorite runs at your local mountain keep this lid on hop on a bike and pedal over to your favorite apres spot this multisport helmet allows you to swap out your zipmold summer comfort liner for a zipmold winter liner sold separately and back again to keep one helmet all year round the performance liner with adjustable di