What is a knife sheath?

A knife sheath is a protective covering for a knife blade. It can be made of various materials including leather, nylon, or plastic. A knife sheath is designed to fit the specific blade shape and size, and it can be either custom-made or purchased from a commercial supplier. The sheath typically has a belt loop or clip to attach it to the user's clothing or equipment, and some designs may include additional pockets or compartments for storing other tools or accessories. A knife sheath serves to protect the blade from damage or corrosion, prevent accidental injuries while carrying or handling the knife, and allow for safe and secure storage of the blade when not in use.