The Pro-Tec Old School was modified from the original 1973 Full-Tec and features a retro shape that sits low on your head, offering great impact protection. The premium heat-sealed liner keeps you comfortable and the 11 open vents keep you cool. The more round shape practically molds to any shape head.
SHELL • High-Impact ABS
LINER • EPS
VENTS • 11 Open Vents
INTERIOR • Heat-Sealed Premium Pads
FIT • 5 sizes - XS, S, M, L, XL
Helmet Sizing
To ensure that your helmet fits perfectly, we recommend measuring the circumference of your head using a measuring tape. For accurate measurements, wrap the measuring tape just above your eyebrows and around your head. Compare your cm measurement to the chart below to find your ideal helmet size.
| Size | Head Circumference (inches) | Head Circumference (centimetres) |
| XS | 20.5 - 21.3" | 52 - 54cm |
| S | 21.3 - 22" | 54 - 56cm |
| M | 22 - 22.8" | 56 - 58cm |
| L | 22.8 - 23.6" | 58 - 60cm |
| XL | 23.6 - 24.4" | 60 - 62cm |
| XXL | 24.4 - 25.2" | 62 - 64cm |