I have Fieldsheer mesh pants as well and have worn them in mid 90's to low 50's (with the liner) along the coast. I like that I can throw the mesh pants on over shorts or jeans and take them off very easily and stow them in my top case when I get to my destination. The quality of both the Fieldsheer pants and the Hi-Temp mesh jacket is outstanding and I would buy them again without hesitation.
+1 +1 +1!!!
I have two sets of Fieldsheer - both the Street 2.0 and the Air.Mesh pants that go with my mesh jacket.
With the mesh suit, I can wear shorts and a T shirt in 90*+ temps, strip it off in about 2 min when I get there, and I'm not hot - either on or off the bike. The Street pants are lined (non-removeable) and too hot for summer, but with a pair of long johns or thin sweats perfect for cold weather riding.
hot down south. I see you are in Arizona, so you know hot, too.
Lots easier to layer up and get warm in the (short) winter than it is to sweat your $#*! off all summer long. I looooove that mesh setup. I'm also a 34" waist with a 31" inseam - the 34's fit like a glove when I'm on the bike. There is even enough room to put them on over a pair of jeans if I wanted to. I'm going to see how cold I can take it with the mesh pants, I might be selling the Street pants if I can get down to the mid-low 40's with the mesh as an overpant.
Really, it doesn't matter which ones you buy. Just the fact that you will be wearing riding pants at all gets a giant +1 from the old Monkey...
I've watched 3 friends go down in gravel/parking lots at less than 10 mph and what happened to their knees wasn't pretty at all. So I take the extra 5 minutes and slide on the gear.
You are wise to do the same...