I used them on a couple of my Puma suede shoes, when it rains water runs right off, my daughter friend wasted syrup all over my shoe, I ran water over it and it come right off. From what I gather u don't need to spray much on the shoe at all, the key is to make sure u blow dry the shoe dry once u spray the 1st coat and then spray another coat then blow dry them again and let sit for 24 hrs. Don't know how well it works on leather shoes but on suede, women/kids Ugg boots & my kids huaraches the spray works.