This is a Uncle Mike's Hip Holster known as the Cordura, model 7002-0.
The ambidextrous hip holster with pouch easily converts to right or left handed use. The reversible belt clip (belts up to 2.25" wide) lets you wear outside or inside your pants.
Features:
Secure – Non-stretch Hook & Loop retention strap and molded thumb break
Spring steel belt clip
Size 2 fits 3-4 barrel medium and large double action revolvers