The following tips are offered by Doug Ballew, Public Health Educator, Travis County supercyclist Project, Chronic Disease and Injury Prevention Program. M easure the diameter of your child's head one inch above the eyebrows before you go to the store to purchase the helmet.
Sizes vary between manufacturers so go by the diameter measurement.
More expensive helmets simply have more ventilation or comfort features, but don't necessarily provide more protection. K eep in mind that while you pay less for a bicycle helmet at a department store, you are more likely to get assistance in proper helmet fitting if you visit a bicycle shop. D on't wear the helmet tipped back. It should be level from front to rear and side to side. Correct positioning protects the front part of the brain.