Red Wing Mink Oil is a 85g – 3 oz. leather conditioner for oil-tanned leather. Mink oil is a traditional means of increasing leather’s water resistance. We recommend testing this product on a small, inconspicuous area of your footwear to determine how much it will darken leather before applying it to the entirety of your footwear. Leather maintenance is the most effective way to protect your investment and extend the life of footwear and other leather products.