The results are in! The A1 Classic MIPS Helmet takes top safety honors, earning a perfect 5 star rating in Virginia Tech’s impact test and was the number one tested ‘MOUNTAIN’ helmet. Partnering with the Insurance Institute for Highway Safety, Virginia Tech’s safety test evaluates a helmet’s ability to reduce linear acceleration and rotational velocity which in the end equates to a reduction in concussion risk. It’s simple, the higher the star rating the lower the risk of concussion. Head over to troyleedesigns.com to learn more about the safety and certification of your helmet in the features section of each product page.