Covering & Storage: After Work. Rösle grills offer a straight-forward innovative design with functional features that will surely bring a nod of appreciation from those who live to grill. That is why it is as important to protect the grill as to grill on it. We guarantee satisfaction no matter what the weather forecast says. Rösle grills, for those that expect a grill to work as well as they cook. The black, polyester weatherproof, full length, heavy duty grill cover is designed to fit Rösle grills snuggly with 4 velcro bands and air vent. The air vent ensures flow and circulation of air.