The Pro-Tec Classic Certified draws its line of design right back to the original Pro-Tec helmet model but with all the latest technology they've pioneered over the last 40 years.
The Classic Certified is equipped with EPS foam and is multi-certified for CPSC CE ASTM and AS/NZS 2063:2008. The protective industry jargon in that last sentence means a massive machine smashed this helmet against an anvil in a scientific setting to prove to the world it will keep your precious dome safe when you slam.
SIZING:
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| HELMET SIZE | HEAD SIZE (CM) | HEAD SIZE (INCHES) |
| YS (YOUTH SMALL) | 47 - 49 | 18.5 - 19.3 |
| YM (YOUTH MEDIUM) | 49 - 51 | 19.3 - 20 |
| XS (EXTRA SMALL) | 52 - 54 | 20.5 - 21.3 |
| S (SMALL) | 54 - 56 | 21.3 - 22 |
| M (MEDIUM) | 56 - 58 | 22 - 22.8 |
| L (LARGE) | 58 - 60 | 22.8 - 23.6 |
| XL (EXTRA LARGE) | 60 - 62 | 23.6 - 24.4 |
| XXL (EXTRA EXTRA LARGE) | 62 - 64 | 24.4 - 25.2 |