Comparison Oakley MOD5 Snow vs Oakley MOD3 Snow

The presence of an adjustable ventilation system in the design of the helmet.

This adjustment is usually done by closing and opening the vent openings, sometimes with an intermediate, half-open position. In addition, some models allow you to separately close/open the front and rear openings. This allows you to customize the equipment to suit the situation. For example, in a frost or a snowstorm with a strong wind, ventilation can be covered so that snow does not fly into it or so that the head does not freeze; and when downhill it is better to leave open only the rear holes, for the same reasons.