The Whitaker Horizon Helmet includes a removable and machine washable Coolmax lining. Carbon texture shell. Easy-care synthetic leather straps with adjustment and chin pad. Decorative silver motif and reflective piping. Nine high-flow air vents for breathability and dial to fit adjustment. Patented Side Impact Protection (PSIP). SEI ASTM F1163-15 and VG1 01.040 2014-12. It has been approved for the following disciplines: British Dressage, British Eventing, British Riding Club, British Show Jumping, Endurance GB, The Pony Club and Riding for the Disabled