Danner Boots have long been one of the standards in workwear when looking to protect your feet. You only have look at their 70 year history of outfitting police and military units to recognize their quality. But as the name entails workwear gets worked and wen its time to recondition you have a couple options: 1. send them back to Danner or 2. pick up soe Danner Boot Care product to work out the kinks yourself. From waterproofing spray, to boot dressing, Danner has you covered.
Danner has a great video online showing their "Recrafting" process.