Summer has finally arrived in the Great White North and we are looking at 32+ degree C (90+ degree F) temperatures for the foreseeable future. I cooked my brain today on midday 55 km (35 mile) ride.
When it's hot I usually wear a sweat band, and I often wear a cap or bandanna under my helmet because I hate it when sweat trickles across my scalp (I'm bald on top). My Halo cap (cool max) is black and it's hard to tell if I'm hotter with it on or off, like wise with a cotton bandanna. I wonder if colour has any influence on how hot it feels. The sun shines through the helmet vents so the black cap is heating up but black might be a better colour for radiating heat. What about white, maybe it would would better as a helmet liner, but it might hold the heat too. Maybe the colour is irrelevant because it's mostly covered by the helmet.
I would think people who ride in hot temperatures most of the time have figured this out. What do you think.