I received a small sample of Obenauf's when I received my Zephyr boots over 30 years ago. I wear the boots casually once a week or so, and when I am quail hunting. Especially after wearing the in the woods on a hunt, they are scratched up pretty bad. Applying one coat of Obenauf's leather preservative, they look like I just pulled them out of the box. I like Obenauf's so much, I have shared my supply with two other Russel boots wearers, and they have raved about how easy it is to use, the protection that it gives their boots, and the look of the boot after they apply Obenauf's.