I have had Tesla (now "TSLA") shirts for many years. I decided to start my collection of sports shirts to update. These shirts last a long time. I wore a Tesla XXL shirt which was a bit tight but these TSLA t shirts are a bit looser in XL. Some indicators may help. I'm tall at 6.1", 225 lbs with a 38" waist and I wear a 46 length sport coat. These shirts are a bit longer too. . Luckily it breaks easily. I'm sticking with the XL TSLA shirts because I like the looser fit and longer length because I have a long torso If you want a snug fit go down a size or even two if old Tesla shirts are your sizing reference Hope this helps.
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