We cannot stress kid's bike safety enough at Balance Bike Outlet. We highly suggest that all children wear a helmet when riding their bike. Many of the below helmets have multiple color options when you select them. See below on how to properly size your child's noggin.
To measure your child for their helmet size, use a measuring tape and wrap it around their head over the ears and above the eyebrows. You want to measure the widest part of their head. Find the circumference and use that to select the correct helmet size. Each brand has different measurements for small, medium, or large, so ensure you select the correct size which is given on the page in both inches and centimeters.