Originally Posted by
chipcom
whenever you think it is
Indeed.
They may also be required at some lift-serviced mountain or BMX-type bike parks.
If you're into that kind of thing.
I wear mine:
- When riding at DH parks.
- Stunt-prone XC trails (whenever it's not too hot)
- In the winter (with goggles, even commuting... it's warm and comfy)