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Phantoscope Outdoor Pillows Waterproof 18x18 Outdoor Pillow Inserts 4 Pack

Based on 12,825 reviews
Condition: New
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$26.99
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Availability: In Stock.
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Arrives Monday, Nov 2
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At a glance

Condition
New
Size
18x18 in
Number of Items
4
Model
Insert-WaterProof-18
Weight
4 lb
Color
White
Material
Polyester

Features 5

  • 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.

Description

High Temperature Is The Key Point: After high-intensity vacuum , high temperature can help the micro-fiber quickly restore its elasticity. It only takes a few minutes to reach the ideal fluffy state! Method 1: Steam iron all sides for 1 minute Method 2: Tumble dry on high heat for 10-15 minutes What are these pillows made of? Are they safe for my kids and my pets? These outdoor pillows are made from hypoallergenic, breathable, and skin‑friendly fabric, filled with 100% virgin fiber. Certified to OEKO‑TEX STANDARD 100. Absolutely safe for kids and pets – no harmful chemicals, just gentle, non‑toxic materials. What are the main features that make these pillow inserts suitable for outdoor use? These throw pillow inserts are made with a water-repellent finish with that can handle rain and spills without soaking through. The water-resistant liner and durable stitching will protect against moisture and mold. Are these only for outdoor use, or can I use them anywhere? Anywhere you like! They're water-repellent and mold-resistant, so they work great on outdoor furniture, chairs, balconies, porches, patios, and also indoors on your couch or bed. Do these pillow inserts maintain their shape over time? Yes, they do. Made with high‑quality 7D virgin fiber, these inserts are designed to resist flattening – even with daily use. Your pillows will stay plump, supportive, and look like new for a long time. Do throw inserts come compressed in a box? How long to fluff up? Yes, these pillow inserts are vacuum‑sealed and compressed. After opening, give them 24–48 hours to fully expand. You can speed it up by ironing or putting them in a dryer on air‑fluff (no heat) with a couple of clean tennis balls for 10–15 minutes. Outdoor Pillow Inserts Outdoor Pillow Inserts Outdoor Lumbar Pillows Outdoor Pillow Inserts Pillow Inserts Cotton Pillow Inserts 18x18 Pillow Insert

Specs 27

Fill Material Microfiber
Pillow Type Throw Pillow Insert
Color White
Size 18x18 Inch
Brand Phantoscope
Cover Material Polyester
Product Care Instructions Hand Wash Only, Machine Wash
Material Features Hypoallergenic, Water Resistant, Waterproof

Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Monday, Nov 2

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews


Great quality and very comfortable!
Size: 18x18 Inch Number of Items: 2
These pillow inserts are soft, fluffy, and fit perfectly in my 18x18 pillow covers. They give the pillows a full, elegant look and hold their shape nicely. Very happy with my purchase!
Reviewed in the United States on September 12, 2026 by Solo yo

Comfortable and durable
Size: 18x18 Inch Number of Items: 2
I really liked these cushions. They look nice, are comfortable, and the water-resistant material is perfect for outdoor use. The size is ideal, and so far, they have performed very well. A good choice for the price.
Reviewed in the United States on September 14, 2026 by Gleyser Vasquez

Excellent
Size: 18x18 Inch Number of Items: 2
These pillow inserts are a great value for the price. They fit my 18x18 outdoor pillow covers perfectly and fluff up nicely once opened. I also like that they’re water resistant, which makes them much more practical for patio furniture. They feel comfortable, hold their shape well, and the two-pack is convenient. Overall, I’m very happy with them and would purchase again. ... show more
Reviewed in the United States on August 24, 2026 by Nikki

Put in dryer to make fluffier!
Size: 18x18 Inch Number of Items: 4
At first, I was very disappointed. They were soooo flat. I fluffed them with my hands and threw in the dryer for about 20 minutes and they fluffed up great. Probably 3 times the original size.
Reviewed in the United States on July 4, 2025 by C. Mitchell

Great Support for Outdoor Cushions!
Size: 18x18 Inch Number of Items: 2
These pillow inserts are exactly what I needed for my patio throw pillows. They are full, supportive, and fit perfectly inside my 18x18 covers. The water resistant material is a great bonus for outdoor use, and they keep their shape well after daily use. They make my patio furniture look fresh and inviting. Very happy with the quality and value. Highly recommend! ... show more
Reviewed in the United States on August 4, 2026 by Janet’s top picks!

Perfect outdoor
Size: 12x20 Inch Number of Items: 2
Got those pillows for outdoor use and they did not disappoint. Took about a day to get them to shape. Did not have any smells. Material is thick, waterproof and breathable. Felt dry after the rain. Pillows are firm and keep shape. Zipper is hidden and doesn’t catch. Can be washed.
Reviewed in the United States on July 31, 2026 by Luybov Danchenko

The Perfect Addition to My Outdoor Patio
Size: 18x18 Inch Number of Items: 2
These outdoor pillow inserts were exactly what I needed to refresh my patio furniture. They provide excellent support and make my throw pillows look full and comfortable. The water-resistant material is perfect for outdoor use and gives me peace of mind. They fit my 18x18 pillow covers perfectly and keep their shape very well. They also blend beautifully with my patio décor, giving the space a more polished look. Overall, they're high-quality, durable inserts that are perfect for any outdoor seating area ... show more
Reviewed in the United States on August 5, 2026 by GABRIELA DELGADO

Flat, Not Really Waterproof
Size: 18x18 Inch Number of Items: 2
Honestly, 2/5 stars is more than these pillows deserve. The listing gives the impression that these are waterproof pillows, but that was not my experience. My backyard couches below are waterproof, and you can immediately tell when something is made to handle water. With these pillows, I just don’t have the same confidence. The other big issue is that they are nowhere near as full as they look in the pictures. The pictures make them look nice and fluffy, but mine are flat. I tried everything I could think of to get them to look fuller — moving the filling around, putting them in the dryer, and even fluffing/patting them by hand. I did everything I read in other reviews, but they still didn’t look the way I expected. I was really hoping they would fill out my daughters pillow covers nicely, but they definitely need more filling. I’m not happy with this purchase, but I have to give it 2 stars because my daughter is happy with them. 😂 So, those two stars are for her! Not the quality or fullness I expected, and I would not purchase them again. ... show more
Reviewed in the United States on August 16, 2026 by Thanaa
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