A combination of mineral waxes, flexible polymers and tanning agents condition and protect leather without over-softening or changing the fit. New formulation is 30% more durable for longer time between reapplications. Easy to apply--use on either wet or dry footwear. To use: clean boots; apply with included spray pump to damp boots, wipe off excess, allow to dry away from direct heat; re-apply as needed. May slightly darken leathers--test on inconspicuous spot before application.