I T&E'd one for my plain clothes carry years ago. Not sure if it was horse or cow hide. What I did observe is that the holster would wick moisture rather quickly and easily, and transfer it straight to your pistol. One day of outdoor use and sweating rusted the slide of my P245 badly, no pitting but I couldn't remove all of the rust without some finish wear. One day, and I am religious about keeping my guns oiled up for corrosion prevention.
Otherwise the holster was quite comfortable, and to be fair I would have been better suited with an OWB holster for the above referenced day of use as I know I lost 7 or 8 pounds from seating. The moral is, the one I used would wick moisture very easily and we now use remora holsters.