Best Helmet for Under £150?

[Fazerider]

For what it’s worth I’ve found Caberg and Givi lids suit me, but helmet choice is such a personal thing that I’ve never found advice or even Ride ratings to be much help.
I prefer helmets with seat-buckle type fasteners rather than the D-loop sort and like to have a flip-down sun visor. Beyond that it’s a question of trial and error in an actual shop where you can check for fit, because everyone’s bonce is different.
I wear glasses, so that is another factor… some helmets that would otherwise be fine are too tight at the sides to accommodate the arms of spectacles.