A properly fitted football helmet sits one inch above your eyebrows, feels snug without causing headaches, and doesn’t shift when you push or pull it. Getting this right matters more than most players realize. A study analyzing over 4,500 concussions in high school football found that players wearing poorly fitted helmets experienced more symptoms, greater severity, and longer recovery times compared to those with helmets that fit correctly.
How to Measure Your Head
Start with a flexible cloth measuring tape. Wrap it around your head about one inch above your eyebrows, keeping it level all the way around. This circumference measurement determines your helmet size. For reference, here are standard size ranges:
- Small: up to 20 3/8 inches
- Medium: 20 3/8 to 22 inches
- Large: 22 to 23 1/2 inches
- Extra Large: 23 1/2 inches and up
If your measurement falls between two sizes, start with the smaller one. You can always adjust padding for a snug fit, but a helmet that’s too large will never sit securely no matter how much you inflate the liners.
Where the Helmet Should Sit
The front rim of the helmet should rest exactly one inch above your eyebrows. This positioning protects your forehead while keeping the helmet out of your line of sight. If the helmet sits too high, your forehead is exposed. Too low, and it blocks your vision and shifts during play.
To check this, put the helmet on and press down on the top of the shell. The front edge should stay at that one-inch mark. If it drops over your eyebrows or rides up past two inches, you’re in the wrong size or the internal padding needs adjustment.
Cheek Pads and Side Fit
The cheek pads should press firmly against both sides of your face with no gaps between the padding and your skin. Your cheeks will puff slightly, and that’s normal. The helmet should feel snug everywhere, with the pads making full contact across the jaw area.
There’s a balance to strike here. A helmet that’s too loose will rotate on impact, reducing its ability to protect you. But one that’s too tight will cause headaches during practice and games. The right fit feels firm and secure without creating pressure points. If you’re getting headaches from your helmet, the cheek pads or crown padding likely need to be swapped for a thinner set.
The Twist and Pull Tests
Once the helmet is on, run two simple checks. First, grab the facemask and try to rotate the helmet side to side. The skin on your forehead should move with the front pad. If the helmet spins independently of your skin, it’s too loose. There should be no room for twisting.
Second, grab the back of the helmet and try to pull it forward over your face, then push it backward. The helmet should resist both movements and stay locked in position. If it slides easily over your forehead in either direction, the internal liners need more inflation or you need a smaller shell size.
Adjusting Air Bladders
Most modern football helmets use inflatable air bladders at the crown, jaw, and back of the head. These let you fine-tune the fit after selecting the right shell size. Each bladder has a valve accessible from the outside of the helmet, and you inflate them using a specialized pump with a short needle (typically 5/8 of an inch, shorter than a standard inflation needle to avoid puncturing the liner).
Start by inflating the crown pad at the top of the helmet until the shell doesn’t wobble on your head. Then inflate the jaw pads until your cheeks feel snug contact on both sides. Finally, adjust the rear bladder so the helmet fits securely from front to back. The goal at every point is a snug, comfortable fit with no dead space between your head and the padding.
Lubricate the needle with glycerin before inserting it into the valve. Don’t use petroleum-based products or saliva, as these can degrade the valve material over time.
Fitting Over Thick or Long Hair
Players with thick hair, braids, or longer hairstyles often struggle with helmet fit because the extra volume changes the effective size of their head. The safest approach is to wear your hair in a low ponytail that hangs below the back of the helmet, keeping the bulk of your hair out of the shell entirely. Multiple braids or a single low braid also work well, as long as the braids sit below the helmet line rather than coiled up under the padding.
Avoid piling hair on top of your head or tucking thick braids under the crown pad. This creates uneven pressure, lifts the helmet higher than it should sit, and introduces gaps between the padding and your skull. If your hairstyle changes significantly between fittings (going from a short cut to longer braids, for example), have the helmet re-fitted to account for the difference.
Why Fit Affects Injury Severity
A poorly fitted helmet doesn’t just fail to prevent concussions. It makes them worse. Research published in the American Journal of Sports Medicine examined over 4,580 concussion cases and found that players with improperly fitted helmets were nearly 1.5 times more likely to experience drowsiness, almost 2.4 times more likely to show hyperexcitability, and nearly 1.9 times more likely to develop sensitivity to noise. They also reported more total symptoms (an average of 5.3 compared to 4.5) and took longer to recover.
The mechanism is straightforward. A helmet that sits too high, too loose, or tilted to one side can’t distribute impact forces evenly. It may shift on contact, allowing direct force transfer to the skull in areas the helmet was designed to protect.
Certification and Helmet Age
Every football helmet used in organized play must meet safety standards set by the National Operating Committee on Standards for Athletic Equipment (NOCSAE). Since 2015, compliance has been verified by an independent third party, the Safety Equipment Institute, rather than by manufacturers themselves. Look for a NOCSAE certification label on or inside the helmet.
Helmets also need to be reconditioned and recertified on a regular schedule. After reconditioning, a label with the current year’s recertification date is placed inside the helmet. In most cases, a football helmet can be recertified until it reaches 10 years old. After that, it should be retired regardless of how it looks. The materials that absorb impact degrade over time, and no amount of reconditioning restores them to original performance. Send equipment for reconditioning as soon as the season ends so it’s ready before the next one begins.
Signs Your Helmet Needs Refitting
Helmet fit isn’t a one-time thing. Several situations call for a recheck: weight changes of more than a few pounds, a new haircut or hairstyle, any impact that felt unusually harsh, or the start of a new season. Padding compresses over time, and air bladders slowly lose pressure.
Red flags that your helmet needs attention include the shell rocking when you shake your head, the front rim dropping below that one-inch eyebrow mark during play, visible gaps between the cheek pads and your face, or any new pressure points that weren’t there before. If the helmet slides easily over your forehead when pushed, inflate the liners or move down a size.