Bicycle helmets are only effective when they fit correctly. Take a few minutes for a safety check to ensure your noggin is as protected as possible on the road:
Size It Right: A helmet should sit snug on the head. It shouldn’t slide around or move back and forth. If it’s a little too big, you might be able to add some additional padding. If it’s a little too small, you could remove some of the interior pads. You should also be able to see the front of helmet above your brow when you look up toward your forehead. The finger test is also a great way to ensure a safe fit.
Strap It Tight: Straps should fit in two ways. First, check to make sure your ears sit inside the “V” made by the straps on each side. If the V is too big or too small, adjust the straps accordingly so they’re snug but comfy. Second, buckle the helmet and open your mouth as wide as you can – like you’re at the dentist. The connected strap should be snug under your chin and your helmet should be pulling tight on your head. If it’s not, shorten up each strap so the buckle lightly touches your chin when your mouth is closed.
Wear It Always: Whether you’re just going down the street to the store or to the end of the driveway, your helmet can only keep you safe when it’s on your head. Most bicycle accidents happen at low speeds and are caused by road debris, railroad tracks, or other non-automobile hazards. Your helmet is most effective in these instances, so make sure you don’t pedal without it!
For a great visual example of how to fit a helmet on yourself or your child, take a look at this chart from SafeKids.org.