Amazon.com : ComfortTac Ultimate Pocket Holster - Ultra Thin for Comfortable Concealed Carry - Compatible with Most Pistols and Revolvers from Glock Ruger Taurus Smith and Wesson Kimber Beretta and More (Compact) :
Buy Inside-the-Pocket Holster And More | Uncle Mikes
S&W M&P Shield 3.1" Plus 9mm Pocket Locker Holster
Carry a Sig P320 9mm with ShapeShift Pocket Holster
Talon Wallet Holster
ShapeShift Pocket Holster
How practical is a Cargo Pocket Holster? :: Guns.com