This classic Active Towns: Places that promote a Culture of Activity unisex long-sleeve tee fits like a well-loved favorite (or at least that's what the description says - I ordered one and can confirm).
Details:
.: 100% airlume combed and ringspun cotton (fiber content may vary for different colors)
.: Light fabric (4.2 oz/yd² (142 g/m²))
.: Retail Fit
.: Tear away label
.: Runs true to size