leather

What do you guys do (if anything) to keep the bellows on your folders in good shape? Do you use any leather treatments or whatever to keep the supple and less likely to develop tears?

Hello everyone! Anyone own a Minolta SRT-101? Has anyone ever replaced the leather covering the camera? I have really been wanting to recover the camera, although, the leather seems to be really hard. Is the "leather" around the camera actually leather? or is it some sort of imitation plastic...