Seasonal adaptation..
The bike-skate helmet does sell OK in cooler seasons, it is less ventilated,
and some companies like Bern, add ear warmers and a winter liner set.
for skiers, and of course, useful for winter bike commuters.

Bern offers a model with a CF shell..

I would not wear one when its over 100F out,
then the more ventilated one will be your pick.