Brooks Tactical is the manufacturer of AGrip. From the manufacturer's web site:

AGrip™ is the revolutionary new custom fit, wrap around, non-slip tactical grip that works even better with sweaty hands made exlusively by Brooks Tactical Systems. Agrip is super easy on the hands, is non-abrasive, and incredibly durable. This "Multi-Purpose Hybrid Material" was created to be non-slip even with hot sweaty, dirty hands, or with cold wet hands underwater. Agrip even works with oil on your hands!

AGrip was specifically designed to exceed the requirements of law enforcement, tactical, combat, and personal defense purposes where sweat and dirt in harsh environments are the norm. Agrip also has significant advantages in hunting and sports. Agrip is ruggedly engineered to be durable and excel in adverse conditions and climates, especially those that are extremely hot, humid, sweaty, dirty, wet, or freezing. Agrip is even fire resistant! Agrip can be used on handguns, rifles, shotguns, bows, knives, flashlights, batons, sports equipment, cameras, binoculars, tools, and more.

Here is a picture of a 1911 with their Agrip.

Photo courtesy of Alliupp