Instruction: Given a question and its related document, determine if the question is answerable by analyzing the information in the document. Output yes if the document addresses the question, or no otherwise.

Input:
Question: Does this product come sizes, such as a Large to fit a Large Frame Semi Auto or a Meduim to fit a .380 ? Or Does it only come in the one size?
Document: This order arrived promptly and initially appeared to be a well constructed solution as advertised.However, once you start trying to get a large frame pistol in the bag, the wheels come off.I was attempting to carry a FN FNX 45 ACP and twp extra magazines. It did not even come close to fitting.Amazon was prompt with the return, so all I was out is my time.Caveat Emptor!
If you are just interested in carrying your weapon and a cell phone, I think you will be extremely pleased with this product. It accomodates my mid size semi auto's without a problem. The wide belt makes it comfortable to wear and I can see no evidence of it projecting the shape of a gun as would be seen by an observer. If, however, you need to carry other items as well as the weapon, you will need something bigger.
*UPDATE*: I've started to carry my Glock 23 in my Ka-Bar and it actually does work and fit quite well. The Benchmade has moved to the rearward pouch next to the flashlight, and a second factory mag loaded up with .40SW JHPs resides in the front one, easy for my off hand to access and to ultimately get into the pistol should the zombies REALLY come on thickly.
This bag is really well made and of high quality, especially for the price. I highly recommend it. The only thing that is not consistent with the description is that it would not fit a full size weapon and the two side pouches will fit a small magazine each. Figure you're fine if you are carrying a compact auto or so. I had read the other reviews so I already knew this and am very pleased with the bag.
The Ka-Bar seemed to address both of these needs from what I could glean from its product page, so I ordered it up.Now that I've worn it for several days I have to say that it's been a success, albeit a somewhat guarded one. The Droid Charge is a challenge to fit in the outer zippered pocket even when the gun compartment is empty; it become an unearthly struggle to get the DC in when a firearm is already stowed.
I almost have as many fanny packs (waist packs) as I do holsters. Well, maybe not that many but I do have several. One of the packs lasted about a year until the buckle gave out. Another is great for a pistol no larger than a .380 pistol or small-framed .38 special revolvers.
Pistol does not fit in the elastic fastening points. Too small for medium and larger semi-autos. pistol does not stay secure since you cant use the elastic fastener. The build quality was good as with most 5.11 products. This is more of a design flaw.
I bought this product primarily because I wanted to carry my concealed handgun in it while I walk/jog/run. Using a large T-shirt over the fanny pack, (It is Slim), makes it almost unnoticeable. I really like it. It is very comfortable to wear while running. The only thing about the fanny pack that I would change is the direction the handgun barrel points, (To the side). I would prefer the handgun barrel point downward in a 45 degree angle.
OK, i'm not law enforcement, just a regualr guy who carries concealed. I have had other fanny packs and they are bloated and clumsy. I have a 3 inch Colt Defender which is a sizeable pistol. The pistol completely disappears in this pack. You don't see the muzzle, and it is deceiving because it doesn't look like anything but a small .380 or 32 would fit there, but i carry my .45 quite comfortably and securely.
This  holster is very comfortable. Sometimes i literally forget that I have it on. Plus, no one ever notices it. It's right out there in the open and no one ever even takes a first look, much less a second. This is a great product and well worth the money.
Answer: yes