Key takeaways
- Polyester fiberfill: most common, soft and affordable. It can hold water if soaked, so dry it thoroughly.
- Quick-dry or open-cell foam: found in seat cushions; drains better but is less plush.
- Recycled-bottle fiber fill: offered by several makers as an eco option; ask for a care label on drying.
- Down or feather: belongs indoors; moisture causes clumping and odor.
For a covered patio or sunny deck, outdoor throw pillows made with solution-dyed acrylic such as Sunbrella-type fabric and quick-drying fill suit buyers who want color that lasts, while polyester pillows with water-resistant coatings suit budget shoppers who accept faster fading, and fully waterproof pillows suit exposed seating that stays out in rain. The right choice depends on three things: how much sun the spot gets, whether it is covered, and how much storage space you have for the off-season.
This guide explains the fabric and fill terms makers use, what to expect from each tier, how to size inserts correctly, and how to care for pillows so they stay fresh. Brands named are examples of known makers; read each product’s own specification list because materials change between lines.
Outdoor Throw Pillows at a Glance
| Type | Best for | Typical stated materials | Limits |
|---|---|---|---|
| Solution-dyed acrylic covers (Sunbrella-branded or similar) | Sunny patios, long-term color retention | Dye added to the fiber before spinning; makers promote fade and mildew resistance | Higher cost; still best stored in heavy rain |
| Polyester with water-repellent finish (Arden Selections, Classic Accessories and similar ranges) | Budget outdoor styling, partly covered areas | Printed or woven polyester, often UV-treated | May fade faster in strong sun; finish wears with washing |
| Olefin (polypropylene) covers | Humid climates, poolside | Solution-dyed polypropylene, resists moisture absorption | Less soft; some feel slightly coarse |
| Waterproof-backed or PVC-coated pillows | Exposed seating, boats, rainy regions | Coated fabric with sealed seams | Can feel stiff or hot; check zipper protection |
| Cushion sets with fast-dry foam | Chairs and benches that need seat support | Open-cell foam with a mesh or vented base | Bulkier than a decorative pillow |
| Indoor-outdoor woven or textured covers | Screened porches, sunrooms | Blended synthetic fibers | Not meant for full rain exposure |
Understanding Fabric Terms
Solution-dyed means color is added to the fiber while it is still liquid, so the pigment runs through the strand rather than sitting on the surface. Makers of solution-dyed acrylic state that this improves fade resistance and allows cleaning with diluted bleach solutions according to their care guides. It is the premium choice for pillows in direct sun.
Water-resistant and waterproof are not the same thing. Water-resistant fabrics shed light rain and spills; waterproof pillows use a barrier that stops penetration but can trap moisture inside if water gets in through a zipper. Read the maker’s wording closely and do not assume a pillow can be left in a downpour for days.
UV-treated polyester is common at the budget tier. It slows fading but typically does not match solution-dyed fibers over several summers.
Fill Matters More Than Buyers Expect
- Polyester fiberfill: most common, soft and affordable. It can hold water if soaked, so dry it thoroughly.
- Quick-dry or open-cell foam: found in seat cushions; drains better but is less plush.
- Recycled-bottle fiber fill: offered by several makers as an eco option; ask for a care label on drying.
- Down or feather: belongs indoors; moisture causes clumping and odor.
Look for a removable cover and an insert that the maker describes as mildew-resistant. A zipper makes cleaning far simpler than a sewn-shut pillow.
Sizing: Match the Insert to the Cover
Common stated sizes are 16 by 16, 18 by 18, 20 by 20 and 24 by 24 inches, plus lumbar shapes around 12 by 20 inches. A frequent tip from home stylists is to buy an insert one size larger than the cover (for example a 20 inch insert in an 18 inch cover) for a fuller look. For outdoor sofas, mixing two sizes and one lumbar gives depth without crowding. Confirm whether the listing includes the insert; many sell covers alone.
Where You Place Them Changes What to Buy
| Setting | Priority | Suggested features |
|---|---|---|
| Covered porch | Style and comfort | Any outdoor-rated fabric, softer fills |
| Open deck in full sun | Fade resistance | Solution-dyed acrylic or olefin |
| Poolside | Chlorine and splash tolerance | Quick-dry fill, mildew-resistant covers; rinse after use |
| Rainy climate | Water shedding | Waterproof-backed pillows with sealed seams, or plan to store them |
| Hot climate | Breathability | Woven acrylic, avoid heavy coatings |
Budget Tiers
- Budget: polyester covers with a water-repellent finish and basic fill. Good for seasonal swaps; expect some fading in direct sun.
- Mid-range: better-woven polyester or olefin, zippered covers, stitched piping and improved fill.
- Premium: branded solution-dyed acrylic, often with multi-year warranties stated by the maker, tighter seams and reinforced zippers.
Care and Storage
- Brush off loose dirt weekly and spot-clean spills promptly using mild soap and water, following the maker’s label.
- Machine wash only if the care tag allows it; air-dry fully before reuse.
- Bring pillows indoors or into a deck box during long rain spells, winter and storms, even if the label says water-resistant.
- Prop wet pillows on their edge so air circulates and mildew does not start.
- Avoid contact with charcoal, sunscreen and oils, which can stain some fabrics.
Pick X If…
| If you… | Choose |
|---|---|
| Have full-sun seating and want color to last | Solution-dyed acrylic covers |
| Redecorate each season | Budget polyester covers with zippers |
| Live in a damp region with no storage | Waterproof-backed or olefin pillows |
| Need comfort for long sits | Larger inserts, 20 or 24 inch, with soft fiberfill |
| Have a covered porch | Mid-range indoor-outdoor fabrics |
| Have children or pets | Dark or patterned fabrics with removable washable covers |
Alternatives
- Outdoor seat cushions: better for hard benches and chairs than decorative pillows.
- Bolsters and floor pillows: good for casual conversation areas.
- Indoor-outdoor rugs and throws: add texture without needing inserts.
- Deck boxes: a cheap way to extend the life of any pillow by keeping it dry off-season.
Styling Tips for Outdoor Seating
Stylists commonly suggest building a pillow arrangement in odd numbers: two matching squares at the corners, one contrasting square, and one lumbar in the middle. Mix one solid color, one pattern and one texture, then repeat a color from nearby planters or rugs. On a sofa, larger 22 to 24 inch squares sit at the back and smaller 16 to 18 inch squares in front, which keeps the arrangement from looking flat.
Think about seasons too. Neutral covers survive trend changes, while inexpensive zippered covers let you swap bright colors for summer and deeper tones for autumn without replacing inserts. Using identical inserts across the set simplifies this, since you only need to buy new covers.
What Reviewers and Makers Commonly Highlight
- Maker pages for solution-dyed acrylic ranges emphasize fade resistance, breathability and cleanability, and several state multi-year warranties against fading; read the terms to see what is covered.
- Reviewers of budget polyester sets frequently report good value for covered patios but note fading after a few summers in direct sun.
- Outlets covering outdoor furniture regularly advise buying one size up for inserts and choosing zippered covers for washing.
- Buyers in humid regions often mention that open-cell fills dry faster than dense fiberfill.
These are general themes from maker descriptions and reviewer commentary rather than guarantees for any specific product, so confirm the details on the exact listing.
Safety and Practical Notes
Outdoor fabrics sit near grills, fire pits and heaters. Keep pillows well away from open flame and hot surfaces, and follow the manufacturer’s guidance on flammability; most decorative outdoor pillows are not flame-proof unless the maker says so. Avoid leaving pillows under trees that drop sap or bird droppings, and shake out insects before bringing cushions inside.
Buying Checklist
Note the exposure of your seating, decide whether pillows will be stored in bad weather, choose between solution-dyed and treated polyester, confirm whether the listing includes inserts, and look for a zippered, washable cover. Compare stated sizes, read the care label and warranty terms, and order one test pillow if you are unsure about the fabric feel or color in daylight.
Frequently Asked Questions
Are outdoor throw pillows really waterproof?
Most are water-resistant rather than fully waterproof. Fabric may repel rain for a while, but fill can still absorb moisture through seams or zippers. For prolonged wet weather, store them or choose a style the maker describes as waterproof with sealed seams.
How do I stop outdoor pillows from fading?
Choose solution-dyed fabrics for sunny spots, rotate pillows, and store them out of direct sun when not used. UV-treated polyester helps but usually fades sooner than solution-dyed fibers. Washing as the care label directs also keeps color even.
Can I wash outdoor pillow covers in a machine?
Many covers are machine washable on a gentle cycle, but not all. Follow the sewn-in care label or maker guide, use mild detergent and air-dry completely. Do not use a hot dryer unless the label permits it.
What size insert should I buy?
Match the stated cover size, or choose an insert one size larger for a plumper look. Check the exact measurements, since some makers size by the finished cover and others by the insert.
How do I prevent mildew?
Dry pillows completely after rain or pool use, prop them to let air flow, and store them in a ventilated space when not used. Mildew-resistant fabric helps but does not replace drying and airflow.
Are cheap outdoor pillows worth it?
They can be for covered areas or seasonal looks. Expect faster fading and thinner fill. If the seating sits in full sun year-round, spending more on better fabric usually pays off over several seasons.
