The John Whitaker NRG Helmet has the ASTM F1163-15 standard. It features a machine washable coolmax lining. Two large front air vents to aid circulation. A dial-to-fit system, bounce-back peak, exceptionally lightweight, glitter decals on front and rear. John Whitaker's NRG and VX2 riding helmets are both tested to SEI ASTM F1163-15 and VG1 standards. Approved for the following Riding Discipline:British Dressage, British Eventing, British Riding Club, British Horse Society, British Show Jumping, Endurange GB, The Pony Club and Riding for the Disabled. John Whitaker NRG Helmet