It is one of the most overlooked safety issues in equestrian sport. Riders invest in certified helmets, wear them every ride, and assume they are protected. But certification only guarantees that a helmet performs correctly when it fits correctly. If yours does not, that certification means less than you think.
The most common reason a helmet doesn't fit right? Hair.
The Problem No One Talks About
The circumference of your head changes depending on how your hair is styled. The difference between hair tucked flat into a hairnet inside the helmet and hair worn in a ponytail or braid hanging out the back is not trivial. Depending on the thickness and length of your hair, it can be significant enough to shift an entire helmet size.
Most riders try a helmet on at some point, decide it feels fine, and buy it. What they do not always account for is whether their hair in that moment reflects how they will actually wear it every time they ride. If it does not, the helmet they bought is not the helmet that is protecting them.
Why This Is a Safety Issue, Not Just a Fit Issue
A helmet works by absorbing and distributing the force of an impact through its foam liner making direct, firm contact with the skull. The liner is engineered to compress in a specific way against a head of a specific size. When the helmet fits correctly, that system works as designed.
When your hair creates an additional boundary between the liner and your skull, that system is compromised. Hair is compressible. It shifts. It is not uniform. In an impact, a layer of hair between the liner and your head absorbs some of the force the liner was supposed to absorb, changes how the helmet moves on your head, and reduces the precision of the energy transfer the helmet was built to provide.
The thicker or more voluminous your hair, the more pronounced this effect. A rider with fine hair in a small ponytail is dealing with a different margin of risk than a rider with long, thick hair in a substantial braid. But in both cases, hair that was not accounted for during sizing introduces a variable that was not part of the helmet's certified performance.
The Right Approach
The simplest and safest solution is to choose one hairstyle and standardize it across all riding. Size your helmet in that style, wear your hair that way consistently, and remove the variable entirely.
For most riders, this means picking either a hairnet worn inside the helmet or a ponytail or braid worn out the back, and committing to it. Not switching between the two based on if you're riding at home or at a show, or whatever is quickest and easiest in the moment.
This is the most straightforward way to ensure that the helmet you sized is the helmet that is protecting you.
When One Helmet Is Not Enough
For riders who genuinely cannot or will not standardize to one style, and for riders with exceptionally long or thick hair where the fit difference between styles is significant, the honest answer is two helmets.
One helmet sized specifically with your hair in a hairnet. One helmet sized specifically with your hair in a ponytail or braid. Each worn exclusively in the configuration it was sized for.
If the fit difference between your two hairstyles is meaningful, you are not wearing a correctly fitting helmet in at least one (probably both) of those situations. A second helmet is not a luxury. It is the only way to ensure consistent protection regardless of how your hair is worn.
If cost is a factor, prioritize the helmet for the style you wear most often in competition, and stick to that style as much as possible for schooling as well.
What a Correct Fit Actually Feels Like
A helmet that fits correctly sits level on the head, approximately one inch above the eyebrows. It does not rock forward or backward under firm pressure from the front or back. It does not shift side to side. It feels snug across the entire circumference of the head without pressure points at the temples, forehead, or crown.
Fasten the chin harness. It should sit snugly under the chin without pinching, and limit how far you can open your mouth. If you can fit more than two fingers under the harness at the chin, it is not fitted correctly.
With the harness fastened, place both palms flat against the sides of the helmet and apply firm sideways pressure. The helmet should move your skin with it, not slide across it. Press firmly on the front brim and try to tilt it backward. If the helmet tips back easily, it is not fitting correctly for your head shape or size.
If your helmet moves independently of your head in any direction, it is not fitting correctly. That is true regardless of the brand, the certification, or what size it says on the label.
A Note on Replacing Your Helmet
Even if you are buying the same brand and model you have always worn, size it fresh each time. Hair changes over time in thickness and length. If it has been several years since your last helmet, your sizing reference may not reflect how your hair actually sits today. Never assume the same size will fit.
At EQU Lifestyle Boutique, we carry a curated selection of certified riding helmets for the English rider. If you have questions about sizing or are due for a replacement, browse our full selection online or reach out to our team for guidance.
Your helmet is the one piece of equipment you never want to find out was wrong.