This is probably the best looking running shirt currently in the market (I might be biased). Very comfortable. breathable and a great fit (downsize).
Bear in mind they come with a loose fit, so go a size down if you want a tighter fit. I am normally Small in all my running tops, and the Small one was too baggy, so had to get an XS. You can see it is very popular, that's how I was able to get a matchie selfie with a fellow parkrunner.