Ended up buying a 2nd one I liked it so much. Haven't run in it yet as it's still too warm out, but have worn both in casual settings and just taking care of things outside on cool mornings. It's fairly thin so thinking it's suited for runs in 32-45 F range with a t-shirt underneath and a heavier long sleeve under for temps below freezing. If it's helpful, I'm 5'8" and 150 lbs with medium build and size Small fits just right.
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