If Your head is Giro shaped. I'd still recommend the air attack. I like the visor option because I get a fuller view. The helmet is a touch cooler without it. So I tend to leave it off and wear sunnies if I'm on hols somewhere with a decent climate. The helmet extends Down the back more than my previous helmets too. Which must be good.
I think if I was going aero route I'd get the Evade but thinking about it, it's not like I'll be racing in it so probably better just getting another light one again. The Prevail looks like the 2D a bit. Hmm.. might wander down to a shop and try some on.
If Your head is Giro shaped. I'd still recommend the air attack. I like the visor option because I get a fuller view. The helmet is a touch cooler without it. So I tend to leave it off and wear sunnies if I'm on hols somewhere with a decent climate. The helmet extends Down the back more than my previous helmets too. Which must be good.
http://www.aeroweenie.com/assets/img/data/erosport-aero-road-helmets.jpg