This is a Bianchi Belt Holster known as the 100, model 19234.
This leather inside the waistband holster meets the requirements for deep concealment applications. The design features a high back that provides a shield between the body and the sharp edges pf the pistol for comfort and to protect clothing. It is designed to ride at the optimum angle inside the waistband to allow for a proper firing grip. The belt clip provides easy on/off convenience and securely anchors the holster to the belt.
Features:
#100 Professional Belt Holster
Right hand
IWB
Fits Sig P229