The Eco-Cover is the next generation in outdoor protection - always 100-percent PVC free. The Eco-Cover is made of the highest grade fabrics engineered and tested for strength, durability, and protection from the elements. It is specially designed to fit current trends and protect your property throughout the seasons. PVC has become a major environmental issue over the past several years due to the toxic chemicals used in its manufacturing process. PVC is difficult to recycle and releases harmful contaminants when buried or incinerated. In the past, most patio covers were made with PVC material and coatings, but now there's a better way... Eco-Cover by Backyard Basics.