I like to wear dress shirts under a sweater with the shirt collar sticking out, or I'll wear a pullover vest with more of the shirt showing. My regular dress shirts are thicker than these sateen shirts and are warmer. But, Wow! I wore this out of the box and it was cool and slick and is now my first choice to wear under a sweater.

The second day I steamed out the wrinkles and wore it with a sweater vest.

I particularly like the cool, smooth and slick feeling of the sateen against my skin as I don't wear undershirts. When I'm in a heated room now or in air conditioning, I no longer sweat with a sweater on.

I just ordered another one.