Order 2 sizes LARGER! fits like a compression shirt if you order a standard size. I'm medium and ordered Xtra Large and it fits perfectly. Great quality and comfortable for playing tennis and staying cool. Really well done. For the price unbeatable!
Pros
The company did everything right
Cons
I ordered LARGE and received XL but I have to keep it as I'm not in the US to return it. Although the quality is very good.