I was gonna post a similar/related question separately, but this thread seems a suitable place - hope OP is OK with that.
I was thinking of that very shirt (or its ilk) with our trip to Spain / Portugal / France this September in mind.
Expecting heat, I bought a Dainese Air Crono mesh jacket to use instead of my Dainese D-Stormer jacket. But the dearth of pockets and limited wind protection for cooler-conditions makes me wonder if it'd be versatile enough to cover all conditions we might encounter over the whole trip - starting Malaga, west to Sagres, north to Picos, west through Picos to Pyrenees, then north through France.
The D-Stormer has loads of huge venting - big mesh chest panels, full-length sleeve, and full back. But in traffic or at low speed, I find it still struggles to keep me cool (on these hot days we've been having lately). But it has a great compliment of pockets too.
The Air Crono flows much more air, but if things got cooler, I'd need to use an insulating layer and rain shell over it to keep warm.
So now I'm wondering if that Forcefield shirt would suffice for the off-road parts of our trip (slower than on-road, so possibly less crucial to have beefy abrasion resistance qualities?), but then for on-road parts, I could use my D-Stormer jacket over it (I'd have the OE Dainese armour removed).
What do the seasoned hot-weather veterans do?