Hans 30M ZERO PA SLD SAH-FIAStilo Zero Series HANS devices combine 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 head and neck restraint system ever. Using proprietary techniques and aerospace grade carbon fiber, the Stilo HANS Zero is 15 percent lighter than the HANS Ultra Lite, the lightest HANS on the market