To keep the leather sheath supple and prevent cracking in the long term, it should be regularly treated with leather oil, leather grease, or a leather balm. These products provide the material with essential nutrients, keep it soft, and protect it from drying out. It is recommended to perform this care routine about once or twice a year and also to protect the sheath from extreme environmental conditions such as intense heat or moisture. Always use a soft cloth or sponge for cleaning to avoid roughening the surface.