I have a pair, really nothing special, but like them for warmer weather. The knee pads, aren't much to speak of, just an interior pocket at the knee with a thin dense foam insert. Best feature, is the vivid camo pattern, as I was looking for a good pattern with green, and these were good in the Mossy Oak Obssesion.
As for the shirt, didn't get it, just bought a matching U.A. Heat Gear shirt in Mossy Oak Obssesion, like the Heat Gear better.