Our daytime temps are in the low 100s. I now start my 1-2 hr workouts near 7 am. It's in the low 70s then. This jersey breathes, and I'm comfortable the whole time. The gold color goes well w my bike and Urban Sage shorts (I think). It was in sale too
I wear a large size, 5' 7", 158 pounds.
The jersey fits well, not loose but race fit for me.