PVC covers can only breathe through air vents built into these covers. Our fabric continues to breathe in all weathers. Vinyl & PVC also becomes hard with low temperatures and eventually breaks down. LifestyleGarden covers stay flexible in low temperatures. PVC is also bad for our earth, our furniture covers are made of environmentally friendly materials that can be recycled after their useful life. 1 Year Warranty Dimensions: 200 Dia x 90cm (Suitable for both round and square 4 seat dining sets) Lightweight 5mm ripstop polyester All covers come with a handy storage bag included Sewn-in cords with 2 stoppers at 2 sides of each cover Breathable membrane transports condensation outside and prevents water, dust and dirt from getting in at the same time All our furniture covers contain no PVC.