Aker 168 FlatSider XR12 - Thumb Break - Right/Tan - H168TPRU-GL1923 - Glock 19, 23 Aker's approach to this popular holster genre is extra comfortable because it's flat on one side! Using their special method, this holster is molded in fine leather to fit your handgun with 100% of the holster pocket formed away from your body At either side of the holster pocket are curved belt slots that cooperate to provide stability on the belt with unparalleled concealment Inside the holster is a full-length molded sight channel