I really like this shirt, but the sizing is too big.
I'm small framed, 6 feet, 145lbs. The small fits me like typical men's large.
It is very comfortable, and the extra size doesn't bunch up and create hot spots.

The stitching is different than the Photon. It says flatlock, but I would say the Photon is a true flatlock seam, and the Wicked is more of a minimal seam. The shoulder stitching is a wide flatlock, but with a little lip, the sides are a standard seam. On the Photon, every seam is a nice small flatlock, and it's overall a better shirt. At equal price, I would buy the Photon again.

I'm not sure when they added reflective piping, mine doesn't have that, and some of the other colors don't show it. I thin the Wicked is an obsolete model now.