Measure around your head at the widest part, be sure to do this with your hair up if that is how the helmet will be worn.
Match the measurement up with a size based on the size chart below. The tape measure should be snug.


**ASTM F-1163-01 AND 04a/SEI Certified Helmets

Helmet Notice, Disclaimer, and Warning
All equestrian sports are inherently dangerous and involve the risk of serious injury or death. Riders using these products ride at their own risk with full knowledge of the hazards and risks associated with their activities. Helmets are designed for equestrian use only. Helmets cannot offer complete protection from injury or death to riders in case of fall, collision, impact, loss of control or otherwise. Helmets cannot protect areas of the head that are not covered. Helmets offer no protection against injuries involving forces other than impact.
CAUTION: Helmets must fit well and all retention straps must be securely fastened. Helmets are constructed so that the energy of an impact may be absorbed through partial destruction of the helmet. Helmets that suffer an impact should be destroyed and replaced. The protective qualities of helmets may be compromised by prior impact, age, use and many common substances. Always follow the manufacturer’s recommendations before applying cleaning agents, paints, or adhesives.
Dover Saddlery disclaims any responsibility for injuries or death incurred while wearing any of the helmets offered for sale. Representations regarding testing results, equipment ratings, product specifications, ASTM and/or SEI standards, and the adequacy of all such standards and designations are made solely by the product’s manufacturer. Dover Saddlery does not warrant or confirm the representations of the manufacturers. Dover Saddlery makes no representations express or implied regarding the fitness of these products for any particular purpose nor the extent to which the products protect riders from injury or death. By purchasing any of the helmets offered for sale and using it in an equestrian sport, the purchaser AGREES FREELY AND VOLUNTARILY TO ASSUME ALL RISKS RELATED TO EQUESTRIAN SPORTS, including the risk of personal injury, damage, death or property damage. Further, to the maximum extent permitted by law, the purchaser does release Dover Saddlery from any and all responsibility or legal liability related to purchaser's participation in equestrian activities.