You have to clean your leather holster regularly to maintain its shine and functionality. Sweat, dirt, water-all these elements can be detrimental to the leather holster. It's best to clean the holster with dedicated leather holster cleaning agents. Avoid water exposure as much as possible.  Leather also exhibits low tolerance to excessively high and low temperatures. Switching to a non-leather holster in winter is a smart move. Leaving the holster under sunlight for long can also significantly shorten its lifespan. So, try not to expose your leather holster to weather extremities. Also, keep the holster away from your pets. Dogs, in particular, love the sweaty taste of leather and will chew on leather holsters whenever they get a chance.