New helmet arrived yesterday, Nolan N40 with removable chinbar, allowing me to hopefully get the best of both worlds.

Great fit and appears well made, with the chin bar locating solidly, but HUGE! Despite being manufactured in 2 shell sizes, it was larger than my current Caberg which is only made in 1. Being a medium, I thought I'd be in the smaller of the 2, but maybe not.
So, back it goes in exchange for an all-out open face Bell, made in 5 shell sizes! Fibreglass too, so better protection. I'll probably get a bubble visor with the flip-up mount and see how I go.
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I've been having a look around for prescription sunglasses for motorcyclists and wondered if anyone has frame recommendations. I guess wraparounds would be best to reduce wind ingress?