If you think there's a wide variety of handguns to choose from these days, wait until you get a load of all the holsters and retention systems folks have devised for carrying them. While it's not possible to review every option on the market, here is an introduction to some of the more common holster types available.
The name of this carry system leaves little to the imagination. This is one of the most popular ways to carry a back-up gun, or even a primary gun, when a belt-line holster is not convenient. Most ankle holsters consist of a handgun pouch connected to strong elastic band that wraps around the leg just above the foot. They can be quite comfortable when fitted properly with small, lightweight handguns. While ankle holsters are easy to access from a seated or kneeling position, they are more difficult to access when standing. Guns carried low on the leg tend to get dirty much faster than guns carried at or above the waist line. Ankle holsters are available from just about every major holster manufacturer, so finding one to fit your particular gun should not be difficult. The holster shown is made by CrossBreed.