DeSantis The Nemesis Glock 42 Pocket Ambidextrous Holster - The Nemesis will revolutionize pocket holsters for concealed carry. Never before has there been a material this viscous. This pocket holster will absolutely not move out of position in your pocket. The inside is made of a slick pack cloth for a low friction draw, and the core is just the right amount of foam to break up the outline of the gun.