Barge Cement is the way to go if what you want is to stick leather to the rubber pad. BUT, there are now two varieties of Barge Cement. Barge Cement is actually a brand name for a high quality contact adhesive, and there are others out there, but Barge seems to be the best. The original formula still comes in the yellow/red packaging, but can be hard to find. The new "environmentally friendly" version comes in a blue/black packaging and does not work as well (what a shock!). I don't think the original formula is still available in tubes, but I recently got some in a quart can. All the internet sources that I checked that showed the yellow/red tubes on their sites were actually selling the blue/black tubes, so be sure you know what you are getting. In my part of CA, the manufacturer has apparently instructed distributors to sell the old product only to professional shoe repair and saddlery shops. I finally found mine at a movie studio equipment house, because it's used a lot by set builders.