I got a shirt with "CQR" brand tags, not Tesla (I don't care about the branding, I just thought it was weird). I normally wear size S t-shirts so I ordered the XS hoping for a tight fight, and got something that fits like a normal S, definitely not tight. The bottom hem hangs a bit unevenly and looks cheap, and my nipples poke through prominently so I'll only be wearing this as an undershirt or lounging around privately. But the fabric is soft and smooth and the price is cheap so I might order a couple more. (I have the design with the raglan sleeves and no exterior branding. I wish vendors wouldn't combine different product styles on one product page because it makes it harder to interpret the reviews, but whatever)