Properly treated leather should have a soft, supple, satin finish. Unless its patent, leather shouldnt be shiny or slick. Build up from body oils, dirt and other types of grime tend to give leather a glossy appearance. Jays 16 oz Leather Cleaner gently lifts these embedded contaminants from deep within the pores of the material yet still retains the natural durability of the leather. Leather is a wonderful material, but it can be more delicate when compared to vinyl or cloth. UV rays, dirt and contaminants can wreak havoc and cause leather to wear prematurely. The easiest way you can combat that degradation is with frequent maintenance and care. Regular cleanings followed by a leather conditioner application will help ensure your leather interior provides enjoyment for the many miles to come