Trauma Void Lynx Helmet Black Size Medium (54 - 58) (6 5/8 - 7 1/8) Worn twice like new, paid $249 The Trauma Void™ Lynx™ Helmet** is the wave of the future of equestrian helmets, and it represents the next step in brain protection technology for riders. The most important component of the Lynx riding helmet is the incorporated Multi-Directional Impact Protection System (MIPS®), which has been used in snow, motor and bike helmets for years. Integrated into the helmet, MIPS is a low-friction layer designed to reduce rotational motion transferred to the brain from angled impacts to the head. This layer absorbs and redirects rotational force rather than allowing it to be transferred to the brain during impact. Coverage may be the first priority of Trauma Void’s Lynx helmet, but it has also been designed for comfort, style and affordability. The design features a removable and washable Coolmax® moisture-wicking lining. It offers great ventilation, and the smooth outer shell is easy to clean. The screen and chin straps are made of durable synthetic leather. **ASTM F1163-15/SEI Certified. The Lynx helmets include a dial-fit system, after fitting the rider for their helmet, adjust the dial so that the helmet fits securely, then adjust the chinstrap.