For comfortable, clean carry, the Uncle Mike's Size 00-1 Inside-the-Waistband Holster features an internal moisture barrier that prevents perspiration from transmitting to your gun. Made of 4 layers of ultrathin laminate for durability, this holster clips to most belt sizes and fits most 2" - 3" barrel small/medium double-action revolvers. The smooth nylon lining promotes a quick draw. Size 00-1.