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: What size for a Glock 19?
Document: This holster is just the right thing for my Glock 19 shooting from the holster. It can be adjusted to fit my gun perfectly.
It's very important you find the exact size number for your gun! I have a Glock 22 and bought the size 21 and it's a perfect fit. The Kydex is superbly formed and the only spot where ware occurs is on the front of the trigger guard. Great find. I'd by another and recommend this to anyone looking for an affordable training holster.
I got this for my H&K USP 9mm, and found that it also fits my .45, The build of the holster is very sturdy, the retention is positive, and you can choose paddle or belt attachment with adjustable cant. It's pretty tough to beat that for the price. At this point, I am considering replacing my Safariland paddle holster for my Glock 19 with one of these.
This holster is a good choice for every day concealed carry, but there are some details to be aware of:- There is no retention other than the holster moulding, which is good, but your gun will come out with vigorous activity. I've run, jumped, and tumbled and haven't lost my Glock yet, however I could see it happening.- The holster is not gun specific. If you order one for a Glock 19, it will fit a 17.
I bought this holster for my Glock 19, basically to start shooting IDPA and range practice for personal defense course, it works well, at first it was a little snug to draw out, but it fits well, I loosened the retention screw and with a little use it has become very comfortable while having decent retention. This is no concealment holster, this is a range shooting holster. It is a very decent value at this price.
The holster arrived before scheduled and after a minor adjustment of the tension screws the size 12 fit my Taurus pt140 very well. It's the best "open holster" I've seen constructed from Kydex, a very strong, durable plastic. Being an open holster there is no retention system or thumb break, the molded form of the holster actually holds your weapon in place until you draw it with a deliberate tug.
This holster is really had to put on for some reason, I own a Fobus for a Glock 21 gen 4 and it snaps on and off easily,
This unit fits my Glock perfectly and securely. It allows removal quickly and easily. Use it all timesI use the belt loops and like them better than the paddle
I have several of these and they are excellent, the only problem is the last one I ordered was for a sig and the one they sent was for a glock 21. I don't have time to send stuff back so I wish the people who are picking and shipping this stuff would double check the order.ENOUGH SAID
Not sure what could make this better. it fits well and holds my Glock 17 firmly. I suppose it could conceal a lot better but I have to open carry where I live anyway. I might pay a bit more for a holster which tilts at a 30-45* angle for easier drawing. For the money though -- cant complain.
Answer: yes