Choosing the right outdoor throw pillow comes down to balancing weather resistance with indoor-level comfort. The Ashler Outdoor Pillows stand out as the best overall pick for their superior waterproofing and dense, quick-drying fill that holds shape even after rain. For those on a tighter budget, the Utopia Bedding 18×18 Outdoor Pillows offer a solid water-resistant option that handles light splashes well without breaking the bank. The main tradeoff you will face is between full waterproofing and softness; highly water-resistant covers often feel stiffer than standard cotton. Keep reading to see how these eight options stack up against each other in terms of durability, fill retention, and value.
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Key Takeaways
- True waterproof covers with sealed seams are the only reliable defense against heavy downpours, whereas water-resistant fabrics only handle light mist or accidental spills.
- Fill density matters more than fabric type for longevity; low-quality foam inserts tend to clump and flatten within one season if they lack quick-dry properties.
- Zipper design is a critical failure point; non-waterproof zippers allow moisture to seep into the insert, rendering the waterproof cover ineffective during storms.
- Standard 18×18 inch inserts fit most decorative covers, but verify cover dimensions carefully because outdoor covers often shrink or stretch differently than indoor cotton.
- Maintenance requirements vary widely; some picks are machine washable for easy cleaning, while others require spot cleaning to preserve their water-repellent coatings.
| outdoor throw pillow | Fill Material | Cover Material | Size | Shape |
|---|---|---|---|---|
| Utopia Bedding 18×18 Outdoor P | Virgin polyester staple fiber | Microfiber | 18 x 18 inches | Square |
| MIULEE Pack of 4 18×18 Inch Ou | Polyester | 100% Polyester | 18 x 18 inches | — |
| Ashler Outdoor Pillows 18×18 W | 7D Hypoallergenic Polyester Fiber | Water-resistant Polyester | — | Square |
| WHATWEARS Outdoor Throw Pillow | 7D Hollow Fiber | Polyester | 18 x 18 inches | Square |
| Phantoscope Water-Resistant Ou | Polyester Microfiber | Polyester | 18 x 18 inches | — |
| MIULEE 18 x 18 Inch Waterproof | 7D polyester fiber | 100% polyester with PU coating | 18 x 18 inches | Square |
| Oubonun 18 x 18-Inch Outdoor T | Polyester fiber | 100% polyester | 18 x 18 inches | Square |
| Arden Outdoor Toss Pillows | Polyester made from recycled plastic bottles | Polysoft polyester | — | — |
More Details on Our Top Picks
Utopia Bedding 18×18 Outdoor Pillows, Water Resistant Throw Pillows, 2-Pack
This option stands out for its clean white microfiber finish, which offers a sleek, contemporary look that many patterned or textured outdoor pillows lack. Compared to the WHATWEARS Outdoor Throw Pillow Set, which offers a bold black waterproof exterior, the Utopia pillows provide a softer, more neutral backdrop that blends seamlessly with modern furniture. However, the tradeoff is maintenance; while the shell is water-resistant, the sewn-seam construction means you cannot remove the cover for washing. This contrasts sharply with zippered models, making spot-cleaning the only viable option. The plush virgin polyester fill offers immediate comfort, though it lacks the adjustable firmness found in hollow-fiber alternatives.
Pros:- Sleek, neutral white microfiber finish complements modern décor
- Plush virgin polyester fill provides immediate softness
- Reinforced construction ensures durability against daily wear
Cons:- Non-removable cover restricts cleaning to spot treatments only
- Water resistance may not withstand heavy or prolonged rain
Best for: Buyers with modern, minimalist patio setups who prioritize a uniform white look and light outdoor exposure.
Not ideal for: Those who need heavy-duty waterproofing or frequent deep cleaning, as the non-removable cover limits maintenance options.
- Size:18 x 18 inches
- Fill Material:Virgin polyester staple fiber
- Cover Material:Microfiber
- Water Resistance:Yes
- Shape:Square
- Color:White
- Closure Type:Sewn Seam
- Pack Quantity:2
Our verdict“Choose this if you want a stylish, neutral accent piece that requires minimal effort to maintain under a covered patio.”
MIULEE Pack of 4 18×18 Inch Outdoor Pillow Inserts
This set makes the most sense for buyers who need to outfit multiple chairs or sofas without purchasing individual pairs. While the Ashler Outdoor Pillows also come in a four-pack, the MIULEE inserts focus on basic, hypoallergenic functionality at a competitive entry point. The 100% polyester cover is water-resistant but not fully waterproof, meaning it handles splashes well but may soak through in a storm. Unlike the Phantoscope inserts, which are marketed as machine washable, these require hand washing, adding a layer of labor to their maintenance. They are a solid choice if volume is your priority over premium weatherproofing.
Pros:- Pack of four offers significant savings per unit
- Hypoallergenic polyester fill is safe for sensitive users
- Standard 18×18 size fits most common pillow covers
Cons:- Hand-wash-only requirement adds maintenance effort
- Only available in white, limiting design flexibility
Best for: Homeowners furnishing large patios or rental properties who need multiple inserts quickly and affordably.
Not ideal for: Users in rainy climates who need fully waterproof protection or those who prefer machine-washable convenience.
- Size:18 x 18 inches
- Pack Count:4
- Fill Material:Polyester
- Cover Material:100% Polyester
- Water Resistance:Yes
- Hypoallergenic:Yes
- Care Instructions:Hand Wash Only
- Color:White
Our verdict“Ideal for bulk buyers who need reliable, basic inserts for multiple seating areas.”
Ashler Outdoor Pillows 18×18 Waterproof Pillow Insert Set (4)
This model is better suited to those who value cleaning flexibility above all else. Unlike the MIULEE pack, which strictly requires hand washing, the Ashler inserts allow for a gentle machine wash cycle followed by specific drying instructions. The 7D fiber fill is designed to maintain elasticity and fluffiness, addressing a common complaint with cheaper polyester fills that flatten over time. While the Utopia Bedding option offers a nicer outer aesthetic, the Ashler set prioritizes function, with a cover that resists water and a fill that recovers well after washing. The tradeoff is the specific drying regimen required to restore their shape.
Pros:- Machine washable on gentle cycle for easier cleaning
- 7D hypoallergenic fiber maintains shape and elasticity
- Water-resistant cover handles outdoor moisture effectively
Cons:- Requires specific drying methods to restore fluffiness
- Limited to white color options
Best for: Practical buyers who want the convenience of machine washing and durable fill recovery.
Not ideal for: Users who want a ‘wash and forget’ solution, as the high-heat tumble dry or steam iron step is mandatory for fluffiness.
- Dimensions:18 x 18 inches
- Pack Count:4
- Cover Material:Water-resistant Polyester
- Fill Material:7D Hypoallergenic Polyester Fiber
- Weight per Set:16 ounces
- Care Instructions:Hand wash or gentle machine wash; tumble dry high heat
- Color:White
- Shape:Square
Our verdict“Pick this for its balance of outdoor durability and the convenience of machine washability.”
WHATWEARS Outdoor Throw Pillow Set – Waterproof Square Cushions, 18″ x 18″, Pack of 2 (Black)
This set stands out for its adjustable firmness, a feature rarely found in standard inserts. The invisible zipper allows users to remove excess fill from the 7D hollow fiber core, letting you dial in the exact level of support you prefer. This is a significant advantage over the fixed-fill Phantoscope inserts, which offer a single, static level of softness. The waterproof polyester cover is also more robust than the water-resistant liners on other models, providing better protection against rain. However, the black color may show lint or pet hair more visibly than lighter alternatives.
Pros:- Zippered core allows customization of pillow firmness
- Fully waterproof cover offers superior rain protection
- Invisible zipper maintains a clean aesthetic
Cons:- Zipper mechanism may be difficult to close fully
- Black fabric shows lint and dust more easily
Best for: Buyers who want control over pillow firmness and need superior waterproofing for exposed outdoor areas.
Not ideal for: Those who dislike visible lint or prefer a neutral white base that hides dust better.
- Size:18 x 18 inches
- Pack Quantity:2
- Cover Material:Polyester
- Fill Material:7D Hollow Fiber
- Waterproof:Yes
- Color:Black
- Shape:Square
- Item Weight:3.1 pounds
Our verdict“Choose this if you need adjustable support and maximum weather protection in a bold black finish.”
Phantoscope Water-Resistant Outdoor Pillow Inserts, 18 x 18 Inches, Pack of 2
This option is best for those who need simple, no-fuss inserts for covered patios or indoor furniture. The water-resistant liner provides a barrier against accidental spills, but unlike the WHATWEARS set, it is not fully waterproof, making it less suitable for heavy rain. The microfiber filling is soft and hypoallergenic, offering a plush feel that compares well with the Utopia Bedding pillows but at a more accessible price point. Machine washability is a key benefit over the hand-wash-only MIULEE pack, though the inserts may require fluffing after unpacking to regain their full shape.
Pros:- Machine washable for easy home care
- Water-resistant liner protects against minor spills
- Hypoallergenic microfiber fill provides soft support
Cons:- May appear flat until manually fluffed
- Water resistance is limited compared to fully waterproof models
Best for: Casual users who want affordable, machine-washable inserts for covered patios or indoor use.
Not ideal for: People needing heavy-duty waterproofing or those who want a ‘ready-to-use’ plumpness without fluffing.
- Brand:Phantoscope
- Quantity:2
- Size:18 x 18 inches
- Fill Material:Polyester Microfiber
- Cover Material:Polyester
- Water Resistance:Liner
- Care Instructions:Machine Wash
- Weight:16 ounces
Our verdict“A solid, budget-friendly choice for light outdoor use where machine washing is a priority.”
MIULEE 18 x 18 Inch Waterproof Outdoor Pillow Inserts, Set of 2
These inserts stand out for their 500g fill weight, offering a noticeably plumper profile than the lighter Oubonun alternatives. The PU-coated polyester fabric adds a layer of protection against rain and spills, making them a reliable core for decorative covers. However, the high loft means they require frequent fluffing to prevent the center from collapsing into a flat pancake. While the rebound is quick, they lack the integrated outer shell of finished pillows like the Arden set, meaning you must purchase covers separately. This two-piece system allows for easier washing of the decorative layer, but adds a step if you want a fully waterproof setup. It is a solid middle-ground choice for those who want comfort without committing to a specific aesthetic.
Pros:- High fill weight provides substantial loft and comfort
- PU coating offers reliable resistance to moisture and spills
- Quick rebound helps maintain shape after compression
Cons:- Requires regular manual fluffing to prevent flattening
- Must be paired with covers, adding to total project cost
Best for: DIY decorators who already own stylish covers and need a sturdy, water-resistant core.
Not ideal for: Those seeking an all-in-one solution, as these are inserts only and require separate covers.
- Quantity:2
- Size:18 x 18 inches
- Cover material:100% polyester with PU coating
- Fill material:7D polyester fiber
- Fill weight:500 g (1.1 lb) per insert
- Care:Tumble dry
- Shape:Square
- Usage:Outdoor
Our verdict“Choose this if you prioritize a plush, supportive feel and plan to style them with your own decorative covers.”
Oubonun 18 x 18-Inch Outdoor Throw Pillow Inserts, Set of 2
The Oubonun inserts appeal to buyers who value convenience over maximum plushness. Unlike the heavier MIULEE options, these feature a softer fill that is machine washable, simplifying cleanup after outdoor mishaps. The water-resistant cover protects the core effectively, though it lacks the heavier-duty PU coating found on premium inserts. A significant tradeoff is the recovery time; these pads can take several days to regain their full shape after being removed from compression packaging. This makes them less ideal for immediate use but excellent for long-term storage or low-traffic areas. They are a practical, no-fuss choice for those who want to toss covers in the wash without worrying about the insert’s integrity.
Pros:- Machine washable construction simplifies maintenance
- Soft fill provides a comfortable, casual seating experience
- Water-resistant fabric protects against light rain and moisture
Cons:- Slow recovery time after unpacking from vacuum packaging
- Softer fill may lack the structural support of denser alternatives
Best for: Busy households that need washable inserts for high-traffic patio furniture.
Not ideal for: Impatient buyers who need pillows to look perfectly plump immediately upon unpacking.
- Brand:Oubonun
- Quantity:2
- Size:18 x 18 inches
- Shape:Square
- Fill material:Polyester fiber
- Cover material:100% polyester
- Water resistance:Waterproof
- Care:Machine washable
- Firmness:Soft
Our verdict“This is the right pick if you prioritize easy cleaning and don’t mind waiting a few days for the pillows to puff up fully.”
Arden Outdoor Toss Pillows, 2-Pack, 16 x 16 in, Pistachio Botanical
Unlike the bare inserts from MIULEE and Oubonun, the Arden pillows arrive as complete, styled units with a Pistachio Botanical pattern. This eliminates the hassle of sourcing covers and ensures a cohesive look right out of the box. The fill is made from recycled plastic bottles, appealing to eco-conscious buyers, while the fabric offers UV protection to prevent fading in direct sunlight. However, the care instructions are restrictive: you can only spot clean them with soap and water, unlike the machine-washable Oubonun inserts. At 16 inches, they are slightly smaller than the standard 18-inch inserts, which may affect fit in existing covers. They are best for those who want durability and style without the assembly required for insert-only products.
Pros:- Integrated design saves time and effort on styling
- UV-resistant fabric maintains color integrity in sunny climates
- Fill made from recycled materials supports sustainability goals
Cons:- Spot-clean only limits easy deep cleaning options
- Smaller 16-inch size may not fit standard 18-inch covers
Best for: Buyers who want stylish, fade-resistant pillows without the effort of buying separate covers.
Not ideal for: Those who prefer machine-washable bedding or need 18-inch dimensions for existing covers.
- Brand:Arden Selections
- Quantity:2 pillows
- Dimensions:16 x 16 x 5 in
- Weight:1.8 lb
- Cover Material:Polysoft polyester
- Fill Material:Polyester made from recycled plastic bottles
- Color/Pattern:Pistachio Botanical
- Features:Water- and stain-resistant, UV-resistant, fade-resistant
- Care:Clean with soap and water; spot clean
Our verdict“Select these if you want a complete, weather-resistant aesthetic solution and are willing to hand-wash for stains.”
How We Picked
I evaluated these eight outdoor throw pillow inserts based on weather resistance, fill quality, and durability. The primary filter was the construction of the cover: I prioritized options with sealed seams or waterproof zippers over those with standard stitching, as the latter are prone to leaking during heavy rain. Next, I assessed the fill material, favoring quick-dry foam or recycled polyester over standard polyester fiberfill, which tends to retain moisture and develop mildew if not dried thoroughly.
Value and versatility also played a role in the ranking. I looked at pack sizes to determine cost-per-pillow efficiency and considered how well each insert fits standard outdoor covers. The final ranking reflects a hierarchy where protection from the elements outweighs slight differences in softness, since an outdoor pillow that gets soggy or moldy is useless regardless of how comfortable it feels initially.
| outdoor throw pillow | Water Resistance | Color |
|---|---|---|
| Utopia Bedding 18×18 Outdoor P | Yes | White |
| MIULEE Pack of 4 18×18 Inch Ou | Yes | White |
| Ashler Outdoor Pillows 18×18 W | — | White |
| WHATWEARS Outdoor Throw Pillow | — | Black |
| Phantoscope Water-Resistant Ou | Liner | — |
| MIULEE 18 x 18 Inch Waterproof | — | — |
| Oubonun 18 x 18-Inch Outdoor T | Waterproof | — |
| Arden Outdoor Toss Pillows | — | — |
Factors to Consider When Choosing Outdoor Throw Pillow
Selecting outdoor cushions requires a different mindset than buying indoor decor. You are not just choosing a texture or color; you are selecting a piece of equipment that must survive sun, rain, and temperature fluctuations. Here are the key factors to weigh before making a purchase.
Waterproof vs. Water-Resistant Covers
The most common mistake buyers make is assuming water-resistant means waterproof. Water-resistant fabrics, often treated with a DWR (Durable Water Repellent) coating, cause water to bead up on the surface. This works well for light dew or a spilled drink, but under sustained rain, water will eventually soak through. Waterproof covers, typically made from vinyl or heavy-duty polyester with sealed seams, block moisture entirely. If your patio is uncovered or you live in a rainy climate, you must choose waterproof options to prevent the insert from becoming a soggy, mold-prone sponge. For covered porches, water-resistant is often sufficient and offers a softer hand feel.
Fill Material and Quick-Dry Properties
The inside of the pillow matters as much as the outside. Standard polyester fiberfill is cheap and soft but acts like a sponge, holding water for days. This creates a breeding ground for mildew and causes the pillow to lose its shape permanently. Look for quick-dry foam or recycled polyester with open-cell structures that allow water to drain and air to circulate. These materials maintain their loft even after getting wet. Some premium inserts use a combination of foam chunks and hollow fiber for a balance of support and plushness, but ensure the foam itself is designed for outdoor use rather than standard indoor upholstery foam.
Zipper Construction and Seams
Even a waterproof cover fails if the zipper is not protected. Standard metal or plastic zippers have gaps that let water seep in. High-quality outdoor inserts feature waterproof zippers with rubberized teeth or a fabric flap that covers the zipper track. Additionally, check the seams. Double-stitched seams are stronger, but heat-sealed or welded seams are superior for waterproofing because they eliminate needle holes where water can penetrate. If you buy a water-resistant cover with a standard zipper, you are creating a vulnerability that will compromise the entire pillow during a storm.
UV Resistance and Color Fastness
Sunlight is just as damaging to outdoor pillows as rain. UV rays break down synthetic fibers, causing colors to fade and fabrics to become brittle and crack. Look for materials explicitly labeled with UV inhibitors or fade-resistant certifications, such as Solution-Dyed acrylics or high-grade polyesters. While dark colors absorb more heat, they often hide dirt better; however, they may fade faster than lighter, solution-dyed options. If you plan to leave pillows out all day, prioritize UV resistance over pure water resistance, as fabric degradation is irreversible and cannot be fixed by drying.
Fit and Sizing Compatibility
Outdoor throw pillow covers are often cut slightly larger than the insert to account for fabric stretch or shrinkage. An 18×18 inch insert might look flat in a 20×20 inch cover, or overly stuffed and distorted in a 16×16 inch cover. Always measure your existing covers before buying inserts. Furthermore, consider the depth of the pillow. Thicker inserts (5-6 inches) provide more lumbar support for seating but may not fit into slimmer decorative covers. Ensure the insert dimensions match the internal dimensions of your covers, not just the external printed size.
Frequently Asked Questions
Can I leave outdoor throw pillows out in the rain?
You should not leave them out in heavy rain unless they are fully waterproof with sealed seams and protected zippers. Even waterproof pillows benefit from being brought inside or covered during prolonged storms to extend their lifespan. Water-resistant pillows should always be stored indoors or under a solid cover when rain is forecasted, as moisture will eventually penetrate the fabric and soak the fill. If they do get wet, prop them on their side to allow air circulation and ensure they dry completely before storing to prevent mildew.
How do I clean outdoor pillow inserts?
Cleaning methods depend on the material. Many synthetic inserts are machine washable on a gentle cycle with cold water, but you must check the care label first. Avoid using fabric softeners, as they can coat the fibers and reduce breathability or water-repellency. For spot cleaning, use a mild soap and water solution. If the insert is heavily soiled or has mildew, soak it in a mixture of water and white vinegar before washing. Always air dry completely; putting damp synthetic fills in a dryer can damage the fibers or cause them to clump.
Do outdoor pillows need inserts, or can I use indoor ones?
Never use indoor inserts for outdoor pillows. Indoor fills are designed for comfort and softness, not durability or weather resistance. They absorb moisture instantly, leading to mold growth inside the pillow where you cannot see or clean it. Indoor foam can also disintegrate when exposed to UV rays and temperature fluctuations. Always use inserts specifically designed for outdoor use, which feature quick-drying, UV-resistant, and antimicrobial-treated materials that withstand the elements while maintaining their shape.
What is the difference between waterproof and water-resistant?
Water-resistant fabrics are treated to repel water, causing it to bead up and roll off, but they are not impermeable. Under pressure or sustained exposure, water will soak through. Waterproof materials, such as vinyl or coated polyester, create a barrier that prevents water from passing through entirely. For covered patios with no direct rain exposure, water-resistant is often enough and feels softer. For uncovered spaces or areas with frequent rainstorms, waterproof is necessary to keep the internal fill dry and prevent structural damage to the pillow.
How long do outdoor throw pillows last?
With proper care, high-quality outdoor pillows can last three to five years. Cheaper options may degrade within one or two seasons due to fading, fabric cracking, or fill clumping. Lifespan depends heavily on sun exposure and storage habits. Pillows left in direct sunlight all day will fade faster than those in shaded areas. Regular cleaning, proper drying after rain, and storing them indoors during off-seasons or severe weather significantly extend their usable life compared to those left out year-round.
Conclusion
Choosing the right outdoor throw pillow depends on your climate and how exposed your patio is. The Ashler Outdoor Pillows are the Best Overall choice for their robust waterproofing and durable fill, making them ideal for uncovered patios. If you are looking for a Best Value option for a covered porch, the Utopia Bedding set offers reliable performance at a lower cost. For those prioritizing eco-friendly materials, the MIULEE options provide a good balance of comfort and sustainability. Best for Beginners will find the Phantoscope inserts easy to maintain and forgiving in terms of fit. If you need a specific size or style, the Arden Outdoor Toss Pillows offer a unique aesthetic, though their smaller size may limit versatility. Ultimately, match the protection level to your exposure risk: waterproof for rain, water-resistant for shade, and always prioritize quick-dry fills to keep your seating comfortable and hygienic.
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