February 29 - everyday carry artisans

Neatsfoot oil is a yellow oil rendered and purified from the shin bones and feet of cattle.

Neatsfoot oil is used as a conditioning, softening and preservative agent for leather. Neatsfoot oil is used on a number of leather products, although it has been replaced by synthetic products for certain applications. Items such as baseball gloves, saddles, horse harnesses and other horse tack can be softened and conditioned with neatsfoot oil.

If used on important historical objects, neatsfoot oil (like other leather dressings) can oxidize with time and actually contribute to embrittling. It also may leave an oily residue that can attract dust. On newer leather, it may cause darkening (even after a single application), and thus may not be a desirable product to use when the maintenance of a lighter shade is desired. Neatsfoot oil is more useful for routine use on working equipment.