Covercraft Custom Fit Noah Series Convertible Interior Car Cover, Gray NOAH barrier fabric stops water, yet it breathes to allow any trapped moisture, seam seepage or condensation to easily evaporate Provides all-weather protection and is highly water resistant, dust resistant, UV resistant Micro-Porous Middle Layer creates microscopic holes just enough to allow moisture vapor to escape Inner core is polypropylene for strength, with a polyethylene wrap for softness Offers great Indoor and outdoor protection