
Phantoscope Outdoor Pillows Waterproof 18x18 Outdoor Pillow Inserts 4 Pack | Outdoor Pillow Inserts Water Resi
What it is
A set of four 18×18 waterproof pillow inserts designed to fill your outdoor cushion covers while standing up to splashes and humidity. Perfect for anyone tired of sad, deflated patio pillows.
What earns it a place in this cart
Over 12,700 people have rated these 4.3 stars, and the crowd keeps coming back for pillows that actually stay plump and dry through a season.
Practical backbone for outdoor décor that won't go flat or moldy.
Waterproof pillow inserts that solve two universal patio problems: deflation and dampness.
$23.14 for four inserts (about $5.79 each) undercuts the cost of buying them individually or upgrading to premium outdoor sets.
Who it is forAnyone with patio furniture and existing pillow covers who wants a low-friction upgrade without replacing the whole setup.
What to check before you buy
Fill & Structure
The upgraded density keeps them from going flat halfway through summer. Tight stitching locks the fill in place so you're not fluffing every weekend. You get actual support and softness at once—no plastic-bag feel.
Water Resistance
Splashes and morning dew won't penetrate. The liner is your first line of defense against mold and rot. It's not fully waterproof, but it's engineered for the wet reality of patio life, not a pool.
Fit & Prep
They arrive compressed. Unpack and gently tap to fluff—takes a few minutes. Standard patio pillow-cover size, so no guessing on fit.
Straight from the listing
- Outdoor & Waterproof Material - Outdoor pillow inserts 100% hypoallergenic micro polyester filled, with water resistant liner, our pillow inserts can effectively prevent water splashes.
- Upgraded with 15% more hypoallergenic microfiber polyester filling, these pillow inserts feature a water-resistant liner and durable stitching, protecting your pillows from getting wet and moldy.
- Tight stitching and upgraded polyester provide ultra toughness, which ensures all the throw pillows are well-filled and maintain suitable softness, while having sufficient support and will not become hollow.
- Pack of 4 outdoor waterproof pillow inserts, 18 x 18 square form, additional sizes and measurements to choose from to fill all your decorative pillow covers perfectly.
Manufacturer copy, trimmed. Check the listing for current dimensions and stock.
Where this sits
Outdoor pillows fail for two reasons—they pack down and they absorb moisture. These inserts attack both.











