This is a size comparison of Uncle George's Wallet Holster to a typical wallet holster with an attached back flap.
There are several wallet holsters of this type of construction available and are nice holsters and are being used by many for concealed carry. This particular holster is a good representation of a typical wallet holster with an attached back flap. The measurement was taken at its widest part. It measures a little narrower at the barrel end. These measurements can vary a little depending upon the thickness of the leather used by the manufacturer.
The Uncle George's Wallet Holster is narrower at it's widest part due to the absence of an attached back flap. It is also narrower down at the barrel end.
Below, Uncle George's Wallet Holster is on the left. The thicker holster on the right will be a little more difficult to draw from in tight fitting pants. It is also a little heavier. When reholstering with it in a pants pocket there is a tendency for the barrel of the pistol to find it's way between the back flap and the pistol pocket, not in the pocket, or to hit the top edge of the inside of the pistol pocket and hinder a smooth reentry. Probably can be overcome by some practice. The pistol pocket on the sample attached back flap holster shown here was fairly limber and would collapse enough in my pocket once the pistol was drawn out to make it impossible to reholster without taking the holster out of my pocket. There may be other holsters of this type that have a stiffer pocket and do not collapse. Reholstering with the Uncle George's Wallet holster is smooth and easy as the hinderances have been eliminated. Reholstering Video