The cover is constructed with heavy-duty, fade-resistant, solution-dyed Polyester with a waterproof vinyl coating. With the additional bonded seam, the cover effectively withstands all outdoor elements - sun, rain, wind, snow, and more, guaranteeing a clean, dry furniture set when not in use. User-friendly Design The cover features a reinforced handle design for effortless application and removal. The integrated mesh air vents foster necessary air circulation, allowing moisture to escape, and thereby reducing internal condensation and wind lofting. Windproof and Customizable Fit The adjustable drawstring hem at the bottom enables a custom fit, preventing the cover from being blown away in windy conditions. For added security in windy scenarios, we've included additional buckled straps to attach to furniture legs.