LIGHTWEIGHT AND EASY TO MANAGE: Made of durable rip-resistant polyester that will protect the fire pit from all types of weather. LOCKING DRAWSTRINGS FOR SECURE FIT: Once draped over the heater it's easily cinched and secured on the bottom by adjustable drawstring. SIDE VENTS: To maintain a dry environment, the cover features side vents designed to dissipate heat and prevent condensation. DURABLE PROTECTION FROM ALL THE ELEMENTS: The cover is made of advanced, heavy-duty, rip-resistant fabric also made to repel wind, water, sun damage.