Nope, non-Twin tone Tour Fit has different construction. The pic is the Twin Tone Reducer Grip; note the seam running the length of the grip (actually two strips sewn together). Tour Fit (reducer or not) is a solid, single piece. If you look at the side of the packages and compare the respective grips you will see that the reducers are thinner/ lower profile compared to the same regular grips.
I have done one better than simply looking at the profiles (which I can't tell a whole lot of difference when doing that).
I took one of my regular TourFit grips (no sticker label on the outside of the package), and a (apparently) TwinTone TourFit Reducer as indicated by the sticker label on the package. I already had a white/black one I opened which they sent to me as a "bonus" since they overcharged me on shipping by about $6 (which is obviously not a shady business practice at all).
I then cut a sliver off the edge of both grips, scanned them at 1000 ppi, imported the scanned image into AutoCad, and measured the thicknesses in spots at approximately the quarter points and center (not accounting for the spot where the TwinTone is sewn together which is clearly thinner) of both grips. I measured the thicknesses both accounting for and not accounting for the adhesive tape on the backing of the grip. A screenshot of what I did is shown below. Units are consistent.
With Tape
Excluding Tape
From this, to me at least, it is clear that both grips are approximately the same thickness. The standard TourFit is just a much more consistent thickness than the, as you have clearly indicated, Twin Tone TourFit Reducer (which again according to you should be a full grip size thinner when applied). To me, it is clear that the Twin Tone shown in the picture is a standard Twin Tone, and the TourFit Reducer Grip label is simply added to try and achieve a Placebo effect for unsuspecting customers.
If you think about this from a purely logical stance, a full grip size reduction would be 0.125" and a half grip size reduction would be 0.0625"...I took the slivers and measured the thicknesses with a ruler, and they both appeared to be right at 1/16" (0.0625") from eyeballing it. So...since the standard grip is basically a half grip size difference to begin with...how the hell is it even possible for one of them to be a full or even half grip size thinner when applied? So, I stand by my statement that this is a shady business practice and leave you with this...
Shady business practices are one thing; you not knowing what you are talking about is quite another.