Why do you choose our patio furniture set cover? Made of premium 420D oxford fabric complex with waterproof PU backing Keep rain, snow, dust, wind, defoliation, bird droppings away Perfect to protect your patio furniture away damage from nature elements Suitable for all seasons: It can be used in spring, summer, autumn and winter. Intimate design: The patio furniture cover with adjustable hem cord around bottom to keep it windproof. Easy to clean and care for. Waterproof Specifications: Material: 420D Oxford cloth Color: Black WaterProof: Yes UV Protection: Yes Snow Resistance: Yes Packing Include: 1 x Patio Furniture cover; 1 x Storage bag Warm Proposal: As the furniture does not flat, the low points of cover will collect water and debris. It will reduce the service life of cover over time. We suggest to put some round things to raise the cover up, so that the water and debris can be flow down through the line. When the furniture placed outdoors encounters strong wind, you can press the four corners of the outdoor cover with stones to avoid being blown by the strong wind.