Nubuck leather is made from the top-side of a hide (suede is made from the belly-side) that is sanded and left with a slightly napped finish. To get the most from your nubuck leather, you will want to make sure to clean your boots often. First, start by using a soft-bristle brush to remove all dirt and debris. If you have particularly stained spots you can use a drop of dish soap and warm water with a soft rag, or, when dry, use a very fine grit sand paper to gently buff out the spots in small circular motions. Once your boots are clean and completely dry you can use a leather conditioner to help preserve and protect the leather, but keep in mind that it's not necessary and will darken and remove the nap of the leather some. It's more important to properly waterproof the leather so that it doesn't overly saturate and dry-out if you're in and out of water often. Using our Danner Waterproof Spray or something specifically for nubuck and suede is advised.