It's a great shirt! I bought one to see how it fits and i'm about to buy two more. I'm 6'4" and 180 lbs and the shirt fits perfectly. I've washed and dried it a few times and it hasn't warped, shrank, or lost any color. Definitely a summer weight fabric but that's great for me.
I've tried many brands at all price points and I can assure you these are the best t-shirts for the tropics. I have been buying these for years and they last well - some I have are over 5 years old. The photos show the difference between M (left) and L (right). I'm 188cm, 79kg and both fit well, depending on the style/length you're after. Their service is excellent too - fast turnaround and quick email response.