This grill cover is made by high quality materials, and has innovative features that protect your grill over many seasons. Constructed of 100% heavy-duty polyester fabric. The grill cover is breathable and flexible to accommodate extremely cold weather while maintaining the same strength and durability as vinyl. This durable cover is built to protect your grill from the elements all year long. Water-resistant and appropriate for all weather conditions. This cover fits Genesis E and S series gas grills.