Alien Gear is a leading designer developer and manufacturer of some of the most trusted concealed carry holsters on the market today. On the cutting edge of innovation, with the most durable premium materials, they specialize in revolutionary customizable designs. The Alien Gear ShapeShift Ankle Carry Expansion Pack gives you an Ankle Rig for comfortable all day carry. It is a design of the ankle carry pack that draws support from the heel and the base of the ankle, compared to other holsters that have calf braces and garters that slide down throughout the day. This kit is for use with your ShapeShift Modular Holster System (sold separately). The ShapeShift Expansion Packs will allow you to add versatility to your Alien Gear ShapeShift carry system, customizing your gear to suit your individual needs!