This high-performance patio umbrella cover is engineered to shield round umbrellas up to 12 feet in diameter or square models up to 9 feet long.Measuring 74.8 inches tall with a tapered silhouette, 11.8 inches at the top and 19.7 inches at the base, it wraps snugly around standard market-style canopies while excluding cantilever or offset designs.Crafted from robust 420D Oxford fabric with a waterproof laminated backing and reinforced stitching, it stands firm against rain, snow, hail, UV exposure, and dust without fading, shrinking, or deforming.A full-circumference drawstring hem with cord locks delivers superior wind resistance, keeping the cover securely in place even during storms.The rust-proof side zipper ensures easy access and a tailored fit, while the breathable, lightweight build simplifies installation.When the season ends, it folds neatly into the included carry bag for compact, hassle-free storage.