I was given a set of SMB's, they're in great shape but pretty dirty. Their previous owner took them off the horse the last time she rode, threw them in a tack box and there they sat. It's been several years since they were last used and they seem pretty stiff compared to the new ones I just bought.
Is there any way to wash these up? I'm giving them to someone else, the previous owner meant well but warmblood/draft sized boots just aren't going to fit on my 14.2hh horse and although I'm giving them away, I personally would feel awful to hand over stiff, filthy boots.