Don’t be fooled by the familiar name, this helmet is completely reengineered using only the best materials, technologies and production technologies available – including the new revolutionary 2Vi technology platform developed by Sweet Protection. Don’t be fooled by the familiar name, this helmet is completely reengineered using only the best materials, technologies and production technologies available – including the new revolutionary 2Vi technology platform developed by Sweet Protection. The Grimnir 2Vi Mips helmet is the most advanced freeride helmet on the market. This is a pre-preg carbon fiber beast, now weighing in 23 % lighter than its predecessor.