[fignon's barber]

Originally Posted by AngryScientist

I agree with this approach. The mid range helmets are as good as anyone needs.......

That depends on where you ride. Almost universally, the cheaper helmets are thicker, with fewer vents, making them substantially hotter. I regularly ride in temps between 90 and 100. The cheaper helmets are noticably inferior to more expensive ones under these conditions. I generally go for the expensive helmet bought on sale for sub $200.