Michael L.wrote a review of Patagonia Tropic Comfort II Hooded Shirt - Men's on May 18, 2019
Familiarity: I've put it through the wringer
Fit: True to size
I'm 6'1" with a 39" chest (pretty lanky) and the Medium fits great - plenty of length in the arms and it's loose as you want a sun shirt but not overly baggy. I got the green one and it's a nice light green - good combination of light enough to reflect light but also not a pure white shirt.
I tried on about 10 different sun shirts with the intent of using one for spring ski touring in the Sierras. There are lighter ones that probably breathe better like the Arcteryx Phasic and Mountain Hardwear Crater Lake, but the Arcteryx is very expensive (twice as much as the Tropic) and the MH was only available in a dark blue which didn't make sense to me for my intended purpose. In an ideal world, I would probably have preferred the MH if it came in a light color because it weighs half as much and is only $10 more.
Other shirts I tried but ultimately passed on were BD Alpenglow ($85 and the nickel color was pretty dark. Very comfortable. M fit great.), Patagonia Sunshade (M fit great, not as comfy as tropic and $80), Prana Calder (super heavy - M fit great).
For me, it came down to a combination of price, weight, and color. I wanted a light color and a lightish shirt that would breathe well. The BD and MH were leading contenders on fit and weight but were passed on due to the dark color and price difference. Ultimately, I couldn't justify paying more for a shirt that was darker, so I went with the Tropic. I've used it on several tours and it works great. It is incredibly comfortable (maybe the most comfortable one I tried on) so I was tempted to keep it even as a more casual summer shirt.