One of the most common problems with traditional outdoor furniture covers is mildew. Most other covers do not allow condensation or heat to escape. Outdoor Furniture Covers made of Tyvek® protective fabric have microscopic pores that allow moisture to escape.
Patio furniture covers need to breathe so that moisture can escape, keeping mold and mildew from developing under the cover. KoverRoos use technologically advanced materials that are one-way breathable - moisture leaves, but dust and dirt can't get in.