The Stilo HANS Zero combines the best of the Simpson Group, a fresh Italian design engineered in partnership with Italian helmet manufacturer Stilo, for extreme lightness along with HANS proven technology to create the lightest, most comfortable HANS Device ever. Using proprietary techniques and aerospace-grade carbon fiber, the Stilo HANS Zero is 15% lighter than the HANS Ultra Lite, the lightest HANS on the market before the HANS Zero. SFI 38.1 certified and FIA 8858 approved. Made in America. Medium - For Post Anchors - 30 Degrees