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, Endurange GB, The Pony Club and Riding for the Disabled Whitaker Horizon Helmet