A holster is a type of carrying case designed to hold a firearm, typically a handgun, securely and conveniently. It is often made from materials like leather, nylon, or plastic and can be worn on a belt, thigh, or shoulder. Holsters come in various styles, including inside-the-waistband (IWB) and outside-the-waistband (OWB), allowing users to choose based on comfort and accessibility. Holsters serve to protect the firearm from damage and keep it safely stored when not in use. They also help ensure quick access in emergencies. Proper holster selection is important for both safety and ease of use, making it a crucial accessory for firearm owners.