With heavy use, the surface of the materials may become blocked with dirt and may require cleaning to ensure the technology retains its functionality.
If your boots do need cleaning, gently apply a soft, water-damp cloth to the area. A gentle dabbing action should remove the foreign particles and fully drying the product in a warm area (not too hot) will regenerate the liquid repellency.
Do not use any alcohol based fluids/chemicals for cleaning as this will impede the i-Shield™ technology. Please do not machine wash. Polishing/shining boots will not have a negative effect on the i-Shield™ technology. MAGNUM compatible boot care products are available from most footwear retailers. to Do not use any alcohol based fluids/chemicals for cleaning.