The prAna Flow Crew T is made of a polyester fiber that wears, insulates, and wicks like a mid-weight Polartec PowerDry long undershirt, only this item has the advantage of short sleeves.
The short sleeve style avoids bunching at the wrist and forearm under a fleece jacket and soft/hard shell garment. The pieced structure of the shirt allows for mobility and stretch despite the relative weight of the fabric. Nicely sewn, intelligent design, but a bit expensive.

nice shirt good price but coul not wear it due to annoying thick seam across upper back.

Wicking ability put to the test in temps nearing 100 degree on a 4-day July excursion into Havasupai Falls. This fast drying shirt held up great.
Nice styling (in my opinion) mean I wear it casually as well.

This shirt is nice and sturdy - the material is a bit heavier than I thought it would be, no biggie. Also - it is a tighter fit than other brands in the same size, not that I mind, but I know guys that prefer loose fit.

Not too much has to be said about prAna's new wicking tops. Like their previous ones, it does a phenomenal job evaporating sweat. I use it mostly while playing Ultimate Frisbee or working out, and I dry at least as fast as if I was shirtless.

I like the feel of the material too, but it *is* distinctly synthetic, so if you don't like that feel, it probably won't be your bag.

The only other item of note is the funky panel construction, which only really affects how it looks. I think it’s pretty groovy, but your opinion may very. Pictures generally do it justice - so if you like it or not in the pictures, you probably won't change your mind after seeing it in person.