Choosing the right Pro-Tec helmet size is important for comfort, stability, and protection. A helmet should fit snugly around your head without sliding, shaking, or creating painful pressure points.
Pro-Tec helmets are commonly used for skateboarding, BMX, biking, snow, and water sports. The right size depends on your head circumference and the specific Pro-Tec helmet model you choose.
Use the Pro-Tec helmet size chart below as a general guide before buying.
Pro-Tec Helmet Size Chart
| HELMET SIZING | HEAD CIRCUMFERENCE (CM) | HEAD CIRCUMFERENCE (IN) | HAT SIZE |
|---|---|---|---|
| YOUTH SMALL | 47 – 51 | 18.5 – 20.0 | – |
| YOUTH MEDIUM | 52 – 56 | 20.5 – 22.0 | – |
| XXX-SMALL | 47 – 49 | 18.5 – 19.3 | – |
| XX-SMALL | 49 – 51 | 19.3 – 20.0 | < 6 1/4 |
| X-SMALL | 52 – 54 | 20.5 – 21.3 | 6 1/2 – 3/4 |
| SMALL | 54 – 56 | 21.3 – 22.0 | 6 7/8 – 7 1/8 |
| MEDIUM | 56 – 58 | 22.0 – 22.8 | 7 1/8 – 3/8 |
| LARGE | 58 – 60 | 22.8 – 23.6 | 7 3/8 – 5/8 |
| X-LARGE | 60 – 62 | 23.6 – 24.4 | 7 5/8 – 7/8 |
| XX-LARGE | 62 – 64 | 24.4 – 25.2 | 7 7/8 – UP |
How to Measure Your Head for a Pro-Tec Helmet
To measure your head, use a soft measuring tape. Wrap it around the widest part of your head, usually about one inch above your eyebrows and around the back of your head.
Keep the tape level and snug, but do not pull it too tight. Measure two or three times to make sure the number is accurate.
If you do not have a soft measuring tape, use a string and then measure the string with a ruler.
How Should a Pro-Tec Helmet Fit?
A Pro-Tec helmet should feel snug and secure. It should sit level on your head and cover your forehead without blocking your vision.
A good helmet fit should feel:
- Snug around the full head
- Stable when you shake your head
- Comfortable without sharp pressure
- Low enough to protect the forehead
- Secure with the chin strap fastened
The helmet should not move easily from side to side or front to back. If it shifts too much, it may be too large.
Signs Your Pro-Tec Helmet Is Too Small
Your Pro-Tec helmet may be too small if:
- It creates painful pressure points
- It feels tight around the temples
- It sits too high on your head
- It causes headaches after a short time
- You cannot wear it comfortably with the padding inside
A helmet should feel firm, but it should not hurt.
Signs Your Pro-Tec Helmet Is Too Big
Your Pro-Tec helmet may be too big if:
- It slides forward or backward
- It moves when you shake your head
- It feels loose even with the strap adjusted
- It sits unevenly on your head
- There is too much space between your head and the liner
A loose helmet can reduce protection because it may not stay in place during impact.
Should You Size Up in a Pro-Tec Helmet?
You should size up if your head measurement is at the top end of a size range. This is especially important for Pro-Tec Low Pro helmets, where some sizes overlap.
For example, if your measurement is 57 cm, both S/M and L/XL may appear close. In that case, L/XL may feel more comfortable, especially if the smaller size creates pressure.
However, do not size up too much. A helmet that is too loose is not safe. The best size should feel snug, stable, and comfortable.
Pro-Tec Youth Helmet Sizing
Pro-Tec youth helmets are usually designed for smaller head measurements. Youth Small often fits around 47–51 cm, while Youth Medium often fits around 52–56 cm.
For kids, always measure the head instead of choosing by age. Children grow at different rates, and age-based sizing can be inaccurate.
A youth helmet should sit level, cover the forehead, and stay stable when the child moves their head.
Pro-Tec Classic vs Low Pro Helmet Fit
Pro-Tec Classic helmets often use standard sizes such as XS, S, M, L, XL, and XXL. Pro-Tec Low Pro helmets may use combined sizes such as XS/S, S/M, L/XL, and XL/XXL.
Low Pro helmets are designed for a slimmer and deeper fit. Because of this, they may feel different from older classic helmet styles. If you are between sizes, checking the exact model’s size chart is important.
Tips for Buying a Pro-Tec Helmet Online
Before buying a Pro-Tec helmet online, measure your head carefully and compare it with the size chart for the exact helmet model.
Use these tips:
- Measure around the widest part of your head
- Check the size chart for the exact Pro-Tec model
- Size up if you are at the upper end of a range
- Do not choose a helmet that feels loose
- Make sure the helmet sits level on your head
- Adjust the chin strap after trying it on
- Replace the helmet after a hard impact
If possible, try the helmet indoors first and move your head side to side. It should stay in place without sliding.
FAQs
How do I know my Pro-Tec helmet size?
Measure around the widest part of your head, about one inch above your eyebrows. Then compare the measurement with the Pro-Tec helmet size chart.
Do Pro-Tec helmets run small?
Some Pro-Tec helmets can feel snug, especially Low Pro styles. If your measurement is at the upper end of a size range, sizing up may be more comfortable.
Should I size up in a Pro-Tec helmet?
Size up if you are between sizes or your measurement falls at the top of the size range. Do not size up so much that the helmet feels loose.
How should a Pro-Tec helmet fit?
A Pro-Tec helmet should fit snugly and sit level on your head. It should not slide forward, backwards, or side to side when you move.
What size Pro-Tec helmet is 58 cm?
A 58 cm head measurement usually falls around size M or L, depending on the model. In classic sizing, 58 cm is often at the top of M and the start of L, so L may feel more comfortable.
Final Verdict
Pro-Tec helmet sizing is based mainly on head circumference. Most adult sizes range from XS to XXL, while some models use combined sizes such as XS/S, S/M, L/XL, and XL/XXL.
For the best fit, measure your head carefully and compare it with the correct Pro-Tec helmet size chart. If your measurement is at the top end of a size range, sizing up may give a more comfortable fit. The helmet should feel snug, stable, and secure without causing pain.