Fiebing's Mink Oil Paste, 6 Oz. - Softens, Preserves and Waterproofs Smooth Leather and Vinyl,One Size Fiebing's Mink Oil is a natural byproduct that softens, preserves and waterproofs all articles of smooth leather and vinyl. Also helps protect leather and prevents stains. Great for use on automotive interior leather and vinyl, horse saddles, baseball gloves, boots, furniture, shoes, handbags and more! Fiebing's signature product. 6 oz. Made in the USA!