I use either an Uncle Mike's #3 or a Mika depending on my pants.
I find the Uncle Mike's makes the gun look something like a wallet or cell phone -- presents a rectangular profile when it prints. Bigger pockets get the Mika.
I have been well pleased with either the Mika or Safariland #25. Safariland #25 is probably a little faster with the plastic liner, but both are fine.
El Paso Saddlery, RKBA Holsters, or Kramer depending on the pocket.
"For a moment he felt good about this. A moment or two later he felt bad about feeling good about it. Then he felt good about feeling bad about feeling good about it and, satisfied, drove on into the night."
-- Hitchhiker's Guide to the Galaxy --
I don't know how people use kydex pocket holsters. When I tried one it made my leg hot and sweaty and the kydex rubbed hot spots as well.
Hated it.
Even my ultra stiff horsehide Kramer is more comfortable.
Of course I drive 6000 miles a month in the desert southwest so that may have something to do with it...
"For a moment he felt good about this. A moment or two later he felt bad about feeling good about it. Then he felt good about feeling bad about feeling good about it and, satisfied, drove on into the night."
-- Hitchhiker's Guide to the Galaxy --
Not padded, but made of a springy cloth-backed polymer, with a tacky band stitched to the central area of the holster to help retention in the pocket.
Over time, the holster conforms somewhat to both the carried gun and to your underlying leg shape.
It looks cheap (and is quite inexpensive) but works well for a 1 7/8" barrel J-frame IME.
I don't have any experience with Kydex pocket holsters, just cloth and leather types, but I would think Kydex would be among the hardest to effectively conceal due to its rigid structure. (I have lots of Kydex belt holsters.)
"Therefore, since the world has still... Much good, but much less good than ill,
And while the sun and moon endure, Luck's a chance, but trouble's sure,
I'd face it as a wise man would, And train for ill and not for good." -- A.E. Housman