Tough Rain-Tite™ fabric protects against rain, snow, sun and dirt and won't crack in cold weather. StayOn™ elastic loops fit over legs to keep cover on during high winds. Elastic cord in bottom hem for a fast and custom fit. Air vents reduce inside condensation and wind lofting. Fits stack of 6 standard patio chairs up to 33-1/2"L x 25-1/2"W x 45"H.