High quality materials, latest fit technology and a beautiful low profile lend modern appeal to the ES English riding helmet. The self-adjusting SureFit™ Elite adjusts to the shape of your head and adds to the stability of the helmet for a comfortable fit. The amazing value, rich microfiber covering and sleek vent pattern has made the ES a rider favorite. Low profile Microfiber covering SureFit™ Elite fit system NEW XS Size Mesh covered cluster ventilation FlipFold™ removable washable headliner with Air-Channel™ technology ASTM/SEI-certified HOW TO MEASURE EQUESTRIAN HELMET SIZE - TROXEL HELMETS Troxel Helmet Fitting Guide How to choose your helmet size STEP 1: MEASURE Use a measuring tape to measure around your head one inch above your eyebrows. Or use a string to measure and then lay it out and measure the length of the string. STEP 2: CHOOSE SIZE Use the chart to convert measurement to hat size STEP 3: SELECT YOUR HELMET Select the helmet model you would like to purchase and review the specific size range available and order accordingly.