Orbitkey's leather bands are made from genuine cowhide leather and will age over regular wear and use.
However if you would like to maintain the leather we recommend cleaning it with a damp (non abrasive) cloth, and limiting its exposure to direct heat or intense sunlight.
Let it sit and dry naturally. Don't dry it with a blow dryer as this can cause the leather to wrinkle, and shrink. Once dry, you can apply a clear leather cream / conditioner to avoid cracking and drying out. Applying a conditioner or cream will make the leather a bit softer, so only apply this when needed.