Cordura pancake. Not nearly as sexy as leather, but it won't affect the fini$h on expen$ive blued guns.
In the country, I use a an upright shoulder holster or unhidden hip western or WWII style holster. Would be cool to have a Galco Miami Classic holster, though.
Mauser Werke, Schmidt-Rubin, Remington, Colt, H&K, Weatherby, Browning, Ruger, Marlin, Mossberg, Saiga, S&W, Sig Sauer....a few friends of mine