How to Find My Riding Helmet Size?
Updated: June 2026 · Rincón del Valle Team
How to find my riding helmet size?
To find your size, measure your head circumference with a soft measuring tape, passing it approximately 1 cm above your eyebrows and over your ears, keeping the tape parallel to the ground. The measurement in centimeters directly corresponds to the helmet size (54 cm = size 54, 56 cm = size 56, etc.).
How to measure
Soft measuring tape (sewing tape), 1 cm above eyebrows and ears, parallel to the ground. Repeat the measurement 2-3 times and take the largest one.
Typical size
Adults usually range between 54 and 60 cm. Children 47-55 cm. Large heads (XL size) typically range from 60 to 63 cm in brands like Casco or Charles Owen.
If you are between sizes
Choose the larger one: you can always adjust it with extra padding. A small size cannot be expanded.
Related resources
Extended information
When to replace
A helmet should be replaced after an impact fall, even if it looks visually intact: the internal foam deforms without external signs. Also, when it exceeds 5 years from manufacture, becomes loose due to padding wear, or shows cracks and lining deterioration. Storing it in a cool place and in a breathable bag extends its aesthetic lifespan.
Maintenance and cleaning
The interior is cleaned with neutral soap if the lining is removable. The exterior is wiped with a soft, damp cloth. Do not use solvent products or alcohol, which can damage the paint. Do not leave it exposed to the car sun in summer: heat irreversibly degrades the internal shock-absorbing material.
Frequently Asked Questions
How long does a riding helmet last?
With normal use and no falls, between 3 and 5 years. After an impact fall, it should always be replaced.
Can I use a borrowed helmet?
Only if you know its history (no previous falls) and the size fits your head circumference. When in doubt, it's best to have your own.
Do I need a different helmet for each discipline?
It is not mandatory, but dressage values a sober aesthetic, and jumping tolerates more variety. What is non-negotiable is homologation.
Riding Helmet Size Chart
Measure your head circumference with a soft measuring tape, 1 cm above your eyebrows and over your ears, parallel to the ground. The measurement in centimeters is directly your size.
| Head circumference (cm) | Numeric size | Letter size |
|---|---|---|
| 51 – 52 | 52 | XS |
| 53 – 54 | 54 | S |
| 55 – 56 | 56 | M |
| 57 – 58 | 58 | L |
| 59 – 60 | 60 | XL |
| 61 – 62 | 62 | XXL |
If your measurement falls between two sizes, choose the larger one and adjust with the dial/pads. Brands like Kask use size = exact cm; check the available sizes for each model.
