Originally Posted by AndreyT

I'm used to wearing my Oakley RadarPath glasses over the helmet straps, which is traditionally considered the right way to do it. That's how I used to wear them with my previous helmet - Specialized S3 (size M).
Now I got myself a Specialized Prevail II MIPS (size L, since M felt a bit too tight even at max setting) and I see that the front strap attachment points stand notably further away from the sides of my head with this helmet. For this reason the gaps between the front straps and my head on both sides are pretty wide (~1.5 cm). When I attempt to put my cycling glasses over the straps, I end up having to force the glasses' temples to squeeze the front straps towards my head. I can feel how the straps fight the glasses, especially when I put some tension into the strap by lowering my jaw.