Unique jockey skull from Charles Owen. The MS1 Pro is a groundbreaking jockey skull and the first of its kind to incorporate the famous MIPS technology. Helmets with MIPS (Multi-directional Impact System) are designed to add protection against rotational motion transmitted to the brain in the event of impact. The human brain is most sensitive to rotational motion. The protection is based on an extra shell inside the helmet which glides on impact, resulting in low friction. The ABS outershell offers a deep fit that stays firmly in place. Ten discreet ventilation slots help maintain a comfortable temperature when riding. The removable liner allows you to tailor the fit and keeps the helmet clean and fresh. Offers three different certifications to three international equestrian safety standards: PAS015:2011, ASTM F1163 and VG1 01.04. Note: Cover available for separate purchase, item no. 230196.