How well is the view , is it restricted...
How well is the view , is it restricted at all , wondering how good for mountain biking ?
The view is fine, not restricted, but for mountain biking I would go with something else, more lightweight maybe.
The helmet isn't going to restrict your view, the goggles you wear will. But yeah, not good for mtn biking. You'll sweat a bunch. POC makes helmets that do more sport crossover stuff.