The Grimnir 2Vi® Mips helmet is a full pre-preg carbon fiber beast providing incredible strength and impact performance in a low volume profile. With its ten penetration proof vents this is a well-ventilated hard-shell helmet now weighing in 23% lighter than its predecessor(630g). The helmet is the most advanced freeride helmet on the market and includes Sweet’s revolutionary 2Vi® Technology Platform, engineered to outperform without compromising on weight and volume