Saddle soap is a product for cleansing and conditioning leather. Besides soap it contains ingredients such as oils and waxes to soften and seal leather. Saddle soap improves the structure and surface of the material, making it supple and durable.
Saddle soap is also good to condition spanking implements such as leather paddles, straps, tawses, floggers and whips. The soap is applied with a cloth (or with one's fingers) and rubbed in, similar to how shoe polish is applied to a shoe.