Oubonun 18 x 18 Waterproof Pillow Inserts Set of 2 – Square Outdoor-Ready, High-Loft Polyester

Bring long-lasting comfort and outdoor-ready performance to your patio, porch, or indoor seating with these square pillow inserts. Engineered with a waterproof outer layer and a high-loft 100% polyester fill, the inserts resist moisture and keep their shape for everyday use. The hidden zipper design makes it simple to add or remove filling, and the compact vacuum-packed shipping means they arrive protected and ready to expand with a little manual fluffing.

Will these pillow inserts stand up to rain and sun on my patio?

Oubonun pillow inserts have a waterproof cover intended to shield the inner fill from light moisture and splashes, so they perform well in covered outdoor spaces and casual outdoor use. They’re not meant for permanent submersion, but they do extend the life of decorative pillows exposed to damp conditions.

• Waterproof outer layer for splash and drip protection
• Durable polyester fabric resists fading and wear
• Best for covered patios, porches, and occasional outdoor exposure

How comfortable and supportive are these 18 x 18 inserts?

The inserts use 100% polyester fill that balances softness with structural support, keeping pillow covers full without feeling overly firm. You can customize the loft by opening the hidden zipper and adjusting the fill to suit seatbacks, benches, or accent pillows.

• High-loft polyester for consistent shape and support
• Hidden zipper allows easy fill adjustments
• Suitable for both throw pillows and back cushions

What care steps should I follow to keep them looking their best?

These inserts are vacuum-packed for safe shipping, so squeeze and pat them to restore fullness after unpacking. The manufacturer advises hand washing only; avoid machine washing to preserve the waterproof cover and interior fill.

• Vacuum-packed shipping—manually fluff after opening
• Hand wash the cover and spot-clean the fill as needed
• Avoid machine washing or tumble drying to protect construction

Can I use these inserts with my favorite pillow covers?

Yes—these 18" square inserts fit standard 18 x 18 pillow covers and easily slide into decorative cases for indoor or outdoor style updates. The hidden zipper means the seam remains neat inside any cover, creating a clean, tailored look.

• Designed for standard 18 x 18 pillow covers and shams
• Hidden zipper keeps edges smooth inside covers
• Works well with indoor and outdoor fabrics

Who is this for: These Oubonun waterproof pillow inserts suit homeowners and renters who want durable, weather-aware cushions for patios, porches, sunrooms, and living spaces. They’re a good match for people who swap pillow covers seasonally, need adjustable loft, or want a protected insert that tolerates occasional outdoor use while preserving indoor comfort.