one way to fix it is to use barge all purpose cement,with an awl you can put glue in the cracks two light coats let dry in between each coat,then press together.another way is to take to a good repair shop they can put a thin piece of leather between skin and lining and sew on a patch machine or you can always fox them,also besure and keep boot trees in them ,saddle soap them and i use lexol conditioner.hope this helps