For urban outdoor furniture, the most durable cushion filling that resists becoming lumpy is High-Resilience (HR) Foam, often combined with a quick-dry fiber wrap. Unlike standard polyurethane foam that breaks down and compresses, HR foam has a higher density and resilience, allowing it to spring back to shape repeatedly. For wet environments, a core of HR foam wrapped in a layer of polyester fiber (like Dacron®) provides superior, lump-proof support. This combination allows air and moisture to circulate, preventing the damp, clumping issues common in cheaper fiber-only fills. For ultimate durability, look for cushions using high-density, closed-cell foam or reticulated foam, which are inherently water-resistant and maintain their structure for years. The key is avoiding low-density foam or loose fiber fills alone, as they mat and lump quickly under weather and use. Choose cushions with removable covers for easy cleaning, ensuring your urban oasis remains comfortable and stylish season after season.
What's the most durable cushion filling for urban outdoor furniture that won't get lumpy?
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