--- product_id: 14009420 title: "Premium Polyester Throw Pillow Insert - 12x18- Ultra Soft Large Rectangle Throw Pillow, Couch Sham, Lumbar, Back, Sofa - Machine Washable - Decorative Accent Form - 1 Soft Pillow" brand: "pillowflex" price: "305 zł" currency: PLN in_stock: true reviews_count: 13 category: "Pillowflex" url: https://www.desertcart.pl/products/14009420-premium-polyester-throw-pillow-insert-12x18-ultra-soft-large-rectangle store_origin: PL region: Poland --- # Perfect 12x18" fit for multiple sham sizes Machine washable & hypoallergenic 7D virgin fiber for ultra-soft plushness Premium Polyester Throw Pillow Insert - 12x18- Ultra Soft Large Rectangle Throw Pillow, Couch Sham, Lumbar, Back, Sofa - Machine Washable - Decorative Accent Form - 1 Soft Pillow **Brand:** pillowflex **Price:** 305 zł **Availability:** ✅ In Stock ## Summary > ☁️ Elevate your space with plush perfection — because your couch deserves the best! ## Quick Answers - **What is this?** Premium Polyester Throw Pillow Insert - 12x18- Ultra Soft Large Rectangle Throw Pillow, Couch Sham, Lumbar, Back, Sofa - Machine Washable - Decorative Accent Form - 1 Soft Pillow by pillowflex - **How much does it cost?** 305 zł with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.pl](https://www.desertcart.pl/products/14009420-premium-polyester-throw-pillow-insert-12x18-ultra-soft-large-rectangle) ## Best For - pillowflex enthusiasts ## Why This Product - Trusted pillowflex brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Effortless Care:** Machine washable with built-in safety stitch for durability and easy maintenance - • **Cloud-Like Comfort:** Premium 7D virgin fiber treated with silicon to stay fluffy and clump-free - • **Proudly American Made:** Crafted sustainably in Palmetto, GA, supporting local manufacturing excellence - • **Allergy-Friendly Luxury:** Hypoallergenic polyester fiber keeps your space fresh and irritation-free - • **Flawless Fit Every Time:** Designed to fill 12x16 to 12x18 shams for that irresistibly plump look ## Overview The Pillowflex Premium Polyester Throw Pillow Insert (12x18") offers a perfect fit for various sham sizes, crafted from ultra-soft 7D virgin fiber treated to prevent clumping. Hypoallergenic and machine washable, this resilient pillow insert combines plush comfort with easy care. Proudly made in the USA from sustainably sourced materials, it’s the ideal decorative and supportive accent for couches, beds, and reading nooks. ## Description Comfort and Support Pillowflex offers well-made pillow inserts designed for long-lasting use in any space. Shop Down Alternative Inserts Visit the Store Shop Down Alternative Inserts Visit the Store Discover Our Pillow Collection Visit the Store Discover Our Pillow Collection Find Your Perfect Fit Visit the Store Find Your Perfect Fit Review: Great size - What a great pillow, finally one that fits inside my oversized king bed shams perfectly, filled it out fully, fluffy but full, has good support, not a soft or a hard pillow just really full all the way to the corners, made very well good quality, but this would actually be a good bed pillow but for me its for my shams & I couldn't be more pleased, highly recommend. Review: Lovely pillow … - This pillow has the perfect softness for easing into your couch or chair. This pillow is so soft and comfortable. ## Features - CORRECT SIZE - From the provided size chart image, measure the corner of your shams and calculate the corner to corner dimension, regardless of the size marked. A 12"x18" insert is suitable for a 12"x16" 12"x17" 12"x18 or 11"x17" sham to ensure a "plump" and attractive look. - SOFTNESS AND VERSATILITY - We provide luxurious pillow inserts crafted from soft, full 7D virgin fiber and treated with silicon to prevent clumping. Perfect for any couch, love seat, bed or reading nook, they'll bring comfort and class for a peaceful sleep. - HYPOALLERGINIC - Our square pillow insert is made from American-made polyester fiber pillow insert for perfect balance of softness and firmness, free of odors, lint, dust, and free from any flame retardant chemicals. Ideal for throw or decorative pillow insert. - At Pillowflex, we have a wide selection of high-quality, high-thread-count pillow shell that is not removable for every polyester pillow we craft. Furthermore, our products come with a built-in safety stitch to keep your pillow from unravelling in the wash. - MADE IN USA - This high quality pillow, made from sustainably sourced fiber shell, is proudly crafted in Palmetto, GA, USA crafted from the finest materials, such as throw inserts, square pillow inserts and decorative pillow inserts. Support American Manufacturing. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B00JPMTSAC | | Age Range Description | Adult | | Best Sellers Rank | #28,138 in Home & Kitchen ( See Top 100 in Home & Kitchen ) #77 in Throw Pillow Inserts | | Brand | Pillowflex | | Brand Name | Pillowflex | | Closure Type | Zipper | | Color | White | | Cover Material | Polyester | | Customer Reviews | 4.6 out of 5 stars 7,586 Reviews | | Fabric Type | Polyester Cotton Blend | | Fill Material | Polyester | | Indoor Outdoor Usage | Indoor | | Item Dimensions L x W | 12"L x 18"W | | Item Firmness Description | Plush | | Item Type Name | pillow-form-insert | | Item Weight | 0.2 Kilograms | | Manufacturer | Pillowflex | | Manufacturer Part Number | 12x18PC | | Model Name | 12x18 PC | | Model Number | 12x18PC | | Number of Items | 1 | | Other Special Features of the Product | Hypoallergenic, Machine Washable, Resilient, Sham Insert, Soft | | Pattern | Plain | | Pillow Type | Throw Pillow | | Pillowcase Length | 18 Inches | | Product Care Instructions | Machine Wash, To Refluff Place In Dryer For 3 Minutes With No Heat | | Recommended Uses For Product | Travelling | | Shape | Rectangular | | Size | 12 Inch by 18 Inch | | Style Name | Decor | | Theme | Love | | UPC | 091037766472 | | Unit Count | 1.0 Count | ## Product Details - **Fill Material:** Polyester - **Pillow Type:** Throw Pillow - **Color:** White - **Size:** 12 Inch by 18 Inch - **Brand:** Pillowflex ## Images ![Premium Polyester Throw Pillow Insert - 12x18- Ultra Soft Large Rectangle Throw Pillow, Couch Sham, Lumbar, Back, Sofa - Machine Washable - Decorative Accent Form - 1 Soft Pillow - Image 1](https://m.media-amazon.com/images/I/61oZ1ybj1GL.jpg) ## Available Options This product comes in different **Size** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Great size *by K***N on December 12, 2025* What a great pillow, finally one that fits inside my oversized king bed shams perfectly, filled it out fully, fluffy but full, has good support, not a soft or a hard pillow just really full all the way to the corners, made very well good quality, but this would actually be a good bed pillow but for me its for my shams & I couldn't be more pleased, highly recommend. ### ⭐⭐⭐⭐⭐ Lovely pillow … *by L***N on April 20, 2026* This pillow has the perfect softness for easing into your couch or chair. This pillow is so soft and comfortable. ### ⭐⭐⭐⭐⭐ Great product ! *by M***W on April 16, 2026* Accurate dimensions and fit inside the pillow case perfectly. --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.pl/products/14009420-premium-polyester-throw-pillow-insert-12x18-ultra-soft-large-rectangle](https://www.desertcart.pl/products/14009420-premium-polyester-throw-pillow-insert-12x18-ultra-soft-large-rectangle) --- *Product available on Desertcart Poland* *Store origin: PL* *Last updated: 2026-06-24*