That could be the difference right there, I never see much over 100º and it is always humid here just varying degrees of humidity. I can tell you for sure under those conditions no helmet is much much cooler. I just want to clarify that I am not advocating anyone not wear a helmet that wants to wear one just expressing my personal views and experiences.

I think it would be interesting to have you try the conditions here and me there and see if our opinions on what is cooler would change.

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