Boot Doctor Formula 4 ships free with boot purchase - Formula 4 Leather Conditioner is specially formulated to condition, clean, polish and preserve all types of smooth finished leather. It is ideal for reconditioning old or dry leather. Formula 4 will NOT darken leather. It is recommended for all leathers even exotics. Formula 4 will not leave a sticky or gummy residue behind. Try it on your leather clothing, as well as furniture, car interiors, purses, etc.

Directions: Always check for color fastness in a hidden area before using. If item is very dirty, clean with a leather cleaner, then apply Formula 4 liberally with a cloth. Let dry and buff. Repeat as necessary. Do NOT use on suede, roughout or napped leathers. Shake gently before using.