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.