This is a DeSantis Gunhide Belt Holster known as the 002, model 002BAN3Z0.
The Speed Scabbard(R) is designed to meet the needs of plainclothes professionals preferring a holster without a thumb break while still providing firearm retention. This is accomplished with precise molding and tension screw device on most models. Belt slots are 1 3/4" wide. Some models with two belt slots and without tension device.
Features:
Features three belt slots so you can have either straight up or a forward draw
Most models feature a tension screw so it can be as tight or as loose as the user wishes
Is open top for quick draw
Rides high and tight to the body