Made of 100 percent polyester, the new generation covers are as rugged as vinyl, but more breathable and pliable even in extreme cold conditions. The softness of the fabric also allows for easiest cover placement and removal. Answering the questions of how and where to store the cover, weber has sewn into the seam a drawstring storage bag that fastens with a hang loop and Velcro. The bag, loop and Velcro are all neatly out of sight when the grill is covered. Providing year-round protection from the environment, these fabric covers carry a generous 3-year limited warranty.