Works like a warm winter coat, protecting plants down to 24–26°F. Cover plants before the frost comes, and uncover during the day when temperatures rise above 32°F. This hefty polypropylene fabric is three times the thickness of Reemay and weighs 1.5 ounces per square yard. Allows 50% light transmission. Durable enough for multiple-season use. Porous to air and water and UV stabilized so it won’t deteriorate quickly in sunlight.