Nikwax Conditioner for Leather is a water based formula which can be used on wet or dry leather and is absorbed into the leather where most needed. This Nikwax conditioner is designed for breathable, waterproof, smooth leather footwear. It replenishes the Tanning agents and lubricants and can be used to either break in new leather or restore old cracked leather. Nikwax conditioner adds DWR to smooth leather to repel water maintaining breathability. This product contains no harmful solvents and is free of VOC's and fluorocarbons.