So I received both t-shirts I ordered, 1 modal and 1 two-ply.
Fit and length are perfect for me. Medium for my 6' #167 frame.
Sizing was consistent between the two.
Not a ton of difference, 2 ply feels slightly thicker, slightly stiffer. Modal feels more like a soft, tech fabric but not in a bad way.
I haven't washed them yet.
I like both, but if I re-order, it will probably be modal.
I live in SoCal so the cooler the better, and the modal also seems like it won't wrinkle.
Depending on how they come out of the washer, I'll order more.
With the discount for buying 2, I think it's good value for what you get.
You mind posting pics after you wash them?