One thing that makes a big difference is how the crown/halo sits on your head (the diameter adjustment). Any helmet can feel too hot if you aren’t letting a bit of air between your head and that strap. If all that foam seals off some of the airflow, you’ll feel it as there are a lot of blood vessels right there. A bit of texture on the fabric or a gap goes a long way here.
Another spot you don’t want full sealed is right under the front lip - foam-strap foam-head, you want some air to enter there.
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