The first nylon holster you can custom-mold to fit any handgun. If you have a handgun and are having trouble finding a holster that fits it, the Blackhawk TecGrip FormLok Moldable IWB Holster from Blackhawk is the answer. This technology packed holster system begins with an outer layer of tacky material that clings to the body and fabric for secure all-day carry without the need for a belt clip. The next layer is a high-density closed-cell foam material that provides padding for lasting comfort. The middle layer is where things get interesting, consisting of a material called Memory-Lok. This Memory-Lok material is a thermoformable plastic that allows the user to heat up and mold their holster around their handgun, offering passive retention. With retention, comes added friction.