HARBOREST Outdoor Chair Cushions Set of 4 — 18.5x16x3 Black/White Diamond, Water-Resistant & Foam Support

These HARBOREST outdoor chair cushions are a set of four water-resistant, square-corner seat pads (18.5" x 16" x 3") with attached ties for secure patio seating.

Give your patio chairs a quick upgrade with cushions designed for weather, comfort and everyday use. The HARBOREST cushions combine a durable polyester cover that resists water, stains and UV fading with high-resilience foam that regains its shape after unpacking. Each pack contains four cushions (shipped as two cushions per bag) sized to fit most standard outdoor dining and patio chairs.

Will these cushions fit my patio chairs?

Measure the seat area of your chairs to confirm fit: these cushions measure 18.5 inches long by 16 inches wide and 3 inches thick. Their square-corner design suits many dining and bistro chairs, and the two attached ties per cushion keep them from shifting on typical frames.

• Dimensions: 18.5" x 16" x 3" (length x width x thickness)
• Two ties per cushion for a secure fit
• Square corners for close-fitting placement on flat seats

How do they hold up outdoors and how do I clean them?

The outer fabric is polyester treated for water resistance, stain control and UV tolerance, so it stands up to light outdoor exposure and everyday spills. For routine care, wipe with a damp cloth and mild soap; let cushions dry fully in the sun to refresh loft and remove trapped moisture.

• Water-resistant and stain-proof polyester cover
• UV-resistant finish to slow color fading
• Spot-clean with mild soapy water and air dry in sunlight

How comfortable and durable are these cushions?

Inside each cushion is high-resilience foam designed to offer supportive seating and recover its shape after compression. Because they are vacuum-sealed for shipping, allow 24–48 hours for the foam to expand back to full thickness and softness.

• High-resilience foam fill for long-lasting support
• Vacuum packaging—expands within 24–48 hours after opening
• Stitching and ties help prevent shifting and premature wear

What style and color options does this set include?

This listing is for the black-and-white diamond pattern, an eye-catching geometric print that adds contrast to wood, metal or wicker seats. Colors and appearance may vary slightly depending on lighting and monitor settings, and the pattern complements contemporary and transitional outdoor décors.

• Black/white diamond pattern for modern visual interest
• Set of four cushions—two cushions per shipping bag
• Works with many patio, garden and backyard seating arrangements

Who is this for: The HARBOREST Outdoor Chair Cushions set is aimed at homeowners and renters who want an affordable, attractive way to upgrade standard patio or dining chairs. It’s a practical choice for people who value weather-tolerant materials, quick installation with ties, and cushions that recover shape after unpacking. Ideal for patios, balconies, porches, cafes and casual outdoor dining—anyone who needs comfortable, low-maintenance seat pads sized for common chair frames.