Important: Check with your sanctioning body or race track for their requirements before ordering a helmet.
Measuring your head is a starting point for determining helmet size. The circumference of the head should be measured at a point approximately one inch above the eyebrows in front and at a point on the back of the head that results in the largest possible measurement. Due to varying head shapes, heads that are apparently the same size by tape measure may not take the same helmet size. Don't use the size of another helmet - construction varies from each manufacturer as well as changes that are made to meet Snell testing & safety requirements. If your measurements do not fall within a size range order the next larger size.
Dragonslayer helmets meet current Snell testing requirements. Snell testing is done every 5 years. The current Snell rating is 2010; the next will be 2015. Snell SA rated helmets are Nomex lined.
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