100% Pure Neatsfoot oil is a natural preservative for all leather articles subjected to rugged use. Rubbed in deeply before exposure, it repels water and protects against stiffening of repeated wetting-drying. Used after exposure, makes dried-out leather pliable. Product Details: Will darken most leather, especially lighter oil tack. Excellent product to help break in new tack. Softens, lubricates, moisturizes. Naturally repels water.