Breathable waterproof footwear is most likely to get sweaty and wet inside when used in damp or wet conditions. If the outer nubuck or suede absorbs water, the breathability of the footwear will be reduced. Therefore, the Durable Water Repellency (DWR) of your footwear must be maintained to ensure comfort. It will eventually wear off and need to be renewed with Nikwax Nubuck & Suede Proof™.