Summsun Outdoor Chair Cushions Set of 4 – Black 18.5x16x2 in Waterproof, Fade‑Resistant Patio Seat Pads with Ties

Summsun outdoor chair cushions set of 4 are 18.5 x 16 x 2 inch waterproof, fade-resistant seat pads with ties and a hidden zipper, built to refresh patio chairs with comfortable, weather-ready seating.

These black patio chair cushions are designed to fit most standard dining and lawn chairs while resisting water and sun exposure. Each cushion contains 28D high-resilience foam inside a 250GSM polyester shell treated with a double-layer waterproof coating and fade-resistant finish. The covers have a concealed zipper for easy removal and two adjustable straps to secure the cushion to your chair.

How supportive are these cushions for longer outdoor use?

Summsun cushions use 28D high resilience foam that gives steady resistance and returns to shape after sitting, providing balanced comfort without flattening quickly. The 2-inch thickness supplies a modest lift ideal for dining chairs and casual seating while reducing pressure on sit bones and lower back areas.

• 28D high-resilience foam core for lasting bounce and shape retention
• 2" thickness for everyday outdoor seating comfort
• 18.5 x 16 size fits most patio and wicker chair seats

Will these cushions stand up to rain and sunlight?

The outer fabric is 250GSM polyester with a double-layer waterproof coating that helps block moisture from reaching the foam core, so cushions dry faster and stay cleaner after light rain. A fade-resistant treatment helps maintain the black color against UV exposure for up to three years under normal outdoor conditions.

• 250GSM polyester with double waterproof coating prevents moisture penetration
• Fade-resistant finish preserves color and appearance from sunlight
• Recommended as weather-resistant—store under cover during heavy storms

How do I keep these cushions in place and clean them when needed?

Each cushion has two adjustable straps that secure it to chair frames, reducing slipping and movement during use. A hidden zipper lets you remove the cover for machine washing, making routine cleaning quick and simple.

• Two adjustable straps anchor cushions to chairs for a stable seat
• Concealed zipper provides a neat look and easy cover removal
• Machine-washable covers for simple maintenance and stain care

What chair types and settings are these cushions best for?

These cushions are versatile for many outdoor seating arrangements: patio dining chairs, wicker and rattan seats, balcony furniture, poolside loungers, and garden benches. They come as a set of four, making them convenient for family dining setups and coordinated outdoor styling.

• Suited for patio, lawn, balcony, poolside, and dining chairs
• Set of 4 ideal for matching multi-seat arrangements
• Compact 18.5 x 16 size fits most standard chair seats

Who is this for: Homeowners and renters who want durable, easy-care outdoor cushions that balance comfort with weather resistance. If you need a simple cushion upgrade for dining or casual outdoor seating in a neutral black color—whether for everyday family use, entertaining guests, or refreshing patio furniture—this Summsun set of four gives reliable fit, secure attachment, and low-maintenance cleaning.