AAAAAcessories Outdoor Chair Cushions 18 x 18 x 2 in Set of 2 — Waterproof UV‑Resistant Non‑Slip

These are a pair of 18 x 18 x 2 inch waterproof outdoor chair cushions from AAAAAcessories designed to add comfortable, non-slip seating to dining chairs, bistro sets, and patio seats.

Upgrade your outdoor seating with a ready-to-use cushion set that balances weather resistance, supportive foam, and easy care. Each cushion combines a UV-resistant polyester cover, high-resilience polyurethane foam core, and practical details like ties, an anti-slip base, and a hidden zipper for cover removal. They ship compressed—allow 24 hours for the foam to fully expand—and are sized for standard square chair seats.

Will these cushions fit my outdoor dining chairs?

Measure the flat seat area before purchasing; the cushions are 18" x 18" with a 2" thickness. If the seat differs by more than 0.5" in width or depth, the fit may be loose or too tight. The ties help secure the cushion but work best when dimensions match closely.

• Dimensions: 18 x 18 x 2 inches (width x depth x thickness)
• Recommended tolerance: within 0.5" of your chair seat
• Ideal for square dining, bistro, and patio chairs

How do these cushions hold up outdoors and how do I clean them?

The outer cover is 100% polyester that’s breathable, UV- and fade-resistant, and designed for outdoor use. A hidden zipper lets you remove the cover for spot cleaning or replacement, and the material resists common sun fading and light moisture. Avoid machine soaking or harsh chemicals to preserve color and fabric integrity.

• Cover material: 100% polyester, UV- and fade-resistant
• Cleaning: unzip and spot-clean the cover; air dry
• Weather: water-resistant performance for typical outdoor exposure

What comfort and support do the cushions provide?

Inside each cushion is 100% polyurethane high-resilience foam engineered to offer soft yet supportive seating. The two-inch thickness gives noticeable cushioning while remaining low-profile for standard chairs. Foam arrives compressed—set the cushion aside for 24 hours to recover its intended loft and comfort.

• Core: high-resilience polyurethane foam for steady support
• Thickness: 2 inches for low-profile, comfortable seating
• Unpack tip: allow 24 hours for foam to fully expand

How do these cushions stay in place during use?

Each cushion includes easy-to-use ties and a textured, anti-slip bottom to minimize shifting on chair seats. The ties attach to chair backs or seat rails for added security during dining or entertaining. Together these features keep the cushion stable under normal outdoor use.

• Fastening: built-in fabric ties for secure attachment
• Base: anti-slip bottom reduces sliding on smooth seats
• Use case: suitable for casual dining, gatherings, and everyday outdoor seating

Who is this for: These AAAAAcessories cushions are made for homeowners, renters, and hosts who want an affordable, weather-ready upgrade to their patio, deck, balcony, or garden seating. They suit people who need easy-to-maintain cushions that balance comfort with low visual bulk—perfect for dining chairs, bistro sets, and compact outdoor seating where a neat, secure fit and straightforward care matter.