Either It's Too Hot For Biking, Or I Need Some Better Summer Gear!

plus one for this. had mine for last couple of years. anything over 18 degrees and its perfect with full armour. worn with knox kevlar jeans. top products

 

I bought a Kevlar shirt. Worked well in the heat

 

If you wear textile gear pour water on the sleeves and let it soak in a bit. Surprising how much heat this takes away when you are riding.

 

And another option I went for a few year back on one of our Euro tours. If it's really stifling hot, like it was when our leader for the day just used his Garmin instead of planning a proper route and got us stuck in Orleans traffic in 35+ degrees. Is to soak a neck tube in cold water and wear it on the ride.
In that heat it keeps you cool for a while but dries out surprisingly quickly.

 

I agree with the wetted out neck tube trick, helps a lot but surprising how quick it dries out.

In real summer heat like we had last week a mesh jacket is the only answer. I tried a Richa vented jacket
with all the vents open and other layers stripped out and it was still bloody hot. I also use a wicking T-shirt
and Roadskin jeans. Avoid towns and cities of course and keep the wind blowing at you as fast as possible.

I rode everyday in the heatwave last week.