Durable Material: Made of weather-resistant 210D Oxford fabric, which is more waterproof than regular 420D or 210D material, can withstand up to 2000Pa water pressure. Weather & Water Resistant: BE PREPARED for anything Mother Nature can throw at you! All-Weather Protection! Air Vents: There are two air vents with mesh barriers that promote airflow to reduce inside condensation and wind. Plus, you'll be amazed at how easy it is to slide the cover over the sofa with two handles. Windproof: The outdoor sofa cover has 6-piece click-close straps that fit over the legs to secure the cover on the windiest days and a drawstring bottom all around with cord locks for extra security so it won't be blown away by the wind. The cover is designed to protect your outdoor furniture from dirt, dust, rain, snow, ice and extreme temperatures.