Furniture sets: Choice of a kettle barbecue cover and round furniture set. Ventilation: With air vents to help prevent condensation and mould build-up. Garden furniture cover: Get a premium furniture cover. Waterproof: Made from heavy duty polyester with a waterproof backing. Drawstring design: Easy to fasten with a toggle and elasticated drawstring. Heavy-Duty Waterproof Furniture Cover | Medium | Living Social