It's a Circle Y Expedition Felx2 Trail Saddle that I absolutely love, it is sooo comfortable. It fits him better than our 2 other adult western saddles, one being too tight in his shoulders and the other being too wide.
I know the pictures aren't the best. The first one was after a ride on a hot day, so he was pretty sweaty. The next few are from today, but I didn't put a saddle pad on because I was trying to beat the rain and was rushing to get pictures.
Please excuse his horribly knotty tail, I did condition it and brush it out, he somehow made his braid into a huge knot.