Review on Adjustable Kid Bike Helmet for Children Girl Boy - Ideal for Scooter, Skateboard, Cycling, and Roller Skating by Jose Muenzen

I need to update this if he can actually wear it. Please read the size carefully and measure carefully. The minimum head size is 18.9 and my son is 19. Well I must have measured it wrong because today it's 18.75 and the helmet doesn't fit. We kept it to a minimum and tightened the band all the way, but it was still too big. 0.15 inch makes a big difference. So sad. Although my fault. The helmet is very cute and seems sturdy and well constructed. So we're putting it off until later. My four year old has a small head I think because he wears baby size too.