My son retired from his Army service in 2008, and gave me some of his clothes, including a nice pair of insulated combat boots. The soles were originally non-slip but apparently have gotten hard and slick over the years. We had cold, wet weather over the weekend so I put them on Sunday afternoon and went out to do some work. Half an hour later, I hit a slick spot on the deck and went down hard on my right shoulder. Fortunately, I still bounce so nothing more than a couple of bruises, but it really surprised me how bad the traction had deteriorated.
I’m thinking about either scuffing the soles with a sander, or maybe flashing them with a propane torch - but figured I’d ask here in case someone has already solved the problem.