Definately not slim fit.  I'be bought other slim fit shirts from local retailers (Target) andhad to buy a size up for proper fit.  I typically wear a large, so slim fit is an Do for me.

I bought his shirt in xl expecting a similar fit (actually given it's a chinese seller I expected it to be a little tight).

Nope.  Fits like a box.  It's neither slim fit in its construction or fit.  Unsure if I wanna try sending it back for an exchange or give it away to a friend and order another in a proper size.

Otherwise, the shirt is alright.  A funny material I'm not used to, but the colors are true to the image (I bought the brown shirt with neon green accents).  I like it, except for the fit.