Last week I picked up some kydex at a local industrial supply house. It was very inexpensive. For a three 8.5"x11" sheets I paid $8 and some change. I started my first project with it last night. I needed a pocket holster for my P3at. I wanted something that would guard the trigger, have good retention yet be easy to remove if needed. I wanted something that would work IWB or in a pocket. I also wanted the holster to be something that, once installed would stay put if I tossed the gun in my gym bag or computer bag. This is what I came up with. The gun snaps in to the holster. It is form fit to the gun and literally clamps around it with the tension of the kydex flexing to allow the gun to snap in and out. The hook serves two purposes. One, when I draw the gun from my pocket in a rearward movement it catches on the pocket and the the gun comes out while the holster stays in the pocket. Secondly, When in the open, I can hold the holster in my left hand with my index finger under the hook and draw the gun with my right. The holster is open on the underside of the gun. When snapping the gun in or out the gap you see opens up a bit then closes back. Retention is excellent. I can hang the gun from the hook and bounce it without it falling out. I wore the holster around today in the pocket of my shorts. I tried it loose and with the clip. I prefer it loose and the shape of the holster kept the gun upright in my pocket. I also switched over to IWB with it for a while and it was perfect for the task. I'll try it in my back pocket as well on Monday. All-in-all it took me about 45 minutes to make while I was watching TV with the fam.