I always got the redwings when I was at fredex, I simply bought the black shoe die, the one with the applicator and put 2 good coats on them, my shoes wore out before I ever had to die them again, the reason I say that is I never found a pair of redwings in black, or any shoe for that matter that I liked.
I probably walk 5 miles a day in my boots throwing groceries, not to mention those ramps with the teeth on them to keep us from slipping, boots don't last long on my job so when I find something I tend to stick with it.
About the Danners, you guys think they could hold up to abuse for more than a year? My redwings usually last around 2 years, maybe a little less before I have to replace them, bought a pair of walmart boots one time, in 3 months they were done, sole coming apart insides worn out ect. like I say my job is very tough on boots, in freight, even being on the hub I could make a pair last 3 years easy. Providing they were very good boots like red wings.