Nikwax Leather Conditioner - Maintains and restores the suppleness of smooth leather without over softening. Reduces the break-in time for new boots and revives dried out old leather. Water-based formulation is preferentially drawn to areas that need it most. Safe to use on footwear with waterproof breathable linings and waterproof leathers. Keeps "waterproof" leather at its optimum performance level. For best results, apply to damp leather.