Sidearms & Scatterguns Best IBW Holster 4 Glock 27?

Leather or kydex? I have found Comp-Tac, Dale Fricke and Raven to be good choices for kydex. For leather I like Milt Sparks and Ritchie leather. The Sparks and Raven have long lead times. I carry my G26 in a Fricke and Sparks. Both work well for me.
 
+2 on the king tuck. the other brands in this same style also just as good (crossbreed ect). once you get the leather broken in after a week or 2 it is as comfortable as an old pair of shoes. I carry a 36 daily in one wearing board shorts and a tshirt, at about 4:30 and no problems sitting in the truck or performing any activities. I feel "naked" without it on.
 
I really like the Raven Vanguard. It's a hell of a holster. More versatile than anything else I have tried, and it adds no bulk to the gun. For a 26 or 27 I think this is the best option. I appendix carry, and sometimes move it to the hip area.

Chip
 
I carry my G19 or G17 in a JM Custom Kydex AIWB holster:

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Comp tac Minotaur is my favorite. I've got some David Bullard leather that is great but he is usually a long wait. Bought a Comp tac the other day for a friend and had it in 4 days.