Yes—many urban outdoor furniture cushions do come with waterproof zippered covers, but it’s not a universal standard. The right answer is: they are widely available, especially on mid-to-high-end patio sets, custom cushions, and commercial outdoor furniture, but basic or budget cushions may have removable covers that are only water-resistant, or no zipper at all.
In cities, this feature matters because cushions deal with balcony rain, rooftop wind-driven showers, dust, and limited drying space. A zippered cover makes the cushion easier to remove, wash, and replace without tossing the whole cushion. It also helps if the foam core gets damp or compressed.
Still, “waterproof” and “water-resistant” are not the same. A genuinely waterproof zippered cover usually has a coated or laminated fabric, sealed or taped seams, and a zipper protected by a storm flap. A standard zippered cover may resist light rain, but water can creep through the zipper teeth and stitching. So check the details: a plastic or nylon zipper is often better than metal in wet conditions; a covered zipper, reinforced seams, and drainage-friendly construction are good signs; breathable fabric helps reduce trapped moisture and mildew.
If you’re buying urban outdoor cushions, ask the seller directly whether the cover is removable, whether the zipper is rustproof, and whether the seams are sealed. If you already own cushions with plain water-resistant covers, a custom waterproof zippered cover can be a practical upgrade. Store cushions when heavy rain is expected, and let them dry fully before zipping them back up.
So yes—waterproof zippered covers for urban outdoor furniture cushions absolutely exist. Just don’t assume every cushion has one. Read the spec, inspect the zipper and seams, and choose a cover that suits your city’s weather and your storage space.