This is a Galco Ankle Holster known as the Cop Ankle Band, model CAB2XS.
The Cop Ankle Band(TM) combines economy with the ultimate in concealability. The breathable neoprene cuff has acrylic sheepskin padding behind the holster area and a hook-and-loop closure. The holster offers an adjustable hook-and-loop retention strap. The Cop Ankle Band fits ankle/boot circumferences up to 13". Made for semiautomatic pistols and double-action revolvers" the Cop Ankle Band is available in right and left hand models in black.
Features:
Ankle Band holster
Right hand
Fits semi auto pistols and double action revolvers
Neoprene ankle band with hook-and-loop fastener
Elasticized nylon holster pocket
Retention strap with reinforced thumb break
Comfortable acrylic fleece padding
Fits ankles up to 13 in circumference
