Summsun 15" Round Outdoor Bistro Chair Cushions Set of 2, Dark Grey — Waterproof, 3" Thick High-Density Foam

These two dark grey round chair cushions are built for outdoor living: a 15-inch diameter and 3-inch thickness fit most bistro and garden chairs, while durable polyester fabric and high-rebound foam balance weather resistance with comfort. The removable, machine-washable covers and stitched ties keep the cushions neat and anchored to seats. Packaged compressed for shipping, they expand back to shape within a few days.

How do these cushions hold up to rain and sun?

Summsun cushions use a 250gsm polyester outer fabric engineered to resist water and color fading from sunlight. That makes them suitable for covered patios and occasional outdoor exposure—routinely leaving cushions fully exposed to heavy weather is not recommended.

• Water-repellent polyester face fabric prevents quick saturation
• Anti-fade treatment maintains dark grey tone over time
• Quick-dry construction helps prevent lingering moisture
• Recommended: store indoors during prolonged storms

Will these cushions stay in place during everyday use?

Each round cushion includes two sewn-in ties that secure the pad to chair frames, minimizing slipping on wicker, metal, or wooden seats. The 3-inch thickness and high-density foam add weight and shape, helping the cushion settle into place for steady comfort.

• Two durable ties per cushion for reliable attachment
• 3" thickness provides stability and a snug fit
• High-density 28D sponge resists flattening from normal use
• Works well on curved and flat chair seats alike

How comfortable and supportive are these chair pads?

Inside each cover is 28D high-density foam designed to offer firm, responsive support for extended sitting. The foam’s rebound property keeps the cushion loft consistent, reducing pressure points while preserving shape over repeated use.

• 28D high-rebound sponge for balanced firmness and cushioning
• 3" thickness cushions hips and lower back on hard seats
• Maintains loft after normal daily use
• Suitable for dining, lounging, and café-style seating

How do I clean and care for these outdoor seat cushions?

The covers unzip for easy machine washing, making upkeep straightforward. Remove the foam insert before washing and allow both parts to dry completely; fluff the foam and allow 1–3 days after unpacking for full shape recovery.

• Removable zipper covers are machine washable
• Unzip and remove foam before laundering
• Air-dry covers and inserts fully to avoid mildew
• Shake or fluff cushions to speed expansion after unpacking

Who is this for: Summsun 15" round outdoor bistro chair cushions suit homeowners and renters seeking comfortable, low-maintenance seating for patios, balconies, bistro sets, and garden chairs. They are a practical choice for people who want weather-resistant fabric, firm supportive foam, and easy cleaning, without a bulky profile. Measure your chair seat diameter before ordering to ensure the best fit, and store cushions indoors during extended wet weather to prolong fabric and foam life.