A little silicone spray inside the kydex holster, then wipe with a towel will help with the holster wear. I use food grade silicone to avoid the solvents. I make kydex holsters and this has reduced the wear on the guns that I use for holster molds. Some have been in and out of holsters thousands of times. Dairycreek has it down with keeping the inside of your holster clean. You will always get some wear, but you can keep it to a minimum.