You’ll see them labeled a few different ways, but they generally go by:

• Throw pillow covers – the most common term for decorative, removable covers.
• Cushion covers – often used interchangeably with throw pillow covers.
• Decorative pillow covers – emphasizes style details like texture, ruffles, or pom poms.
• Square pillowcases – another way sellers describe removable square covers.

They’re sized to fit inserts by inches (for example, 16x16, 18x18, 20x20, 24x24, 26x26). Many feature a hidden zipper for easy on/off. When browsing, check the product title and description to confirm the size and whether it’s a cover only or a cover-plus-insert set.

Square pillows you use on sofas, beds, and chairs are typically called:

• Throw pillows – the everyday term for decorative pillows.
• Accent pillows – highlights that they add color, pattern, or texture.
• Decorative cushions – another common way to describe them.

Popular sizes include 16x16 and 18x18 for standard sofas, 20x20 for a fuller look, and 24x24 or larger for oversized seating or floors. On Walmart.com you can filter by size, color, and material to match your space. Many listings sell the covers separately from the pillow inserts, so check the details to see what’s included before you add to cart.

A few quick checks can help you match cover to insert:

1. Measure your insert seam-to-seam (e.g., 18x18 inches).
2. Match sizes for a classic fit: an 18x18 insert with an 18x18 cover.
3. Size down slightly (about 1 inch) if you prefer a tighter, fuller look and your insert is plush.
4. Consider placement: 16x16 or 18x18 suits most sofas; 20x20 or larger works for deep seating or beds.
5. Confirm listing details to see if it’s “cover only.”

Filters on Walmart.com can narrow by size and material. Pickup or delivery options may be available in your area, depending on inventory.

Different fabrics offer different benefits, so it depends on where you’ll use them:

• Velvet: soft and smooth; adds a polished look indoors.
• Chenille: cozy with subtle texture; comfortable for everyday lounging.
• Corduroy: durable ribbed texture; casual and comfy for high-traffic spaces.
• Faux fur/sherpa: plush and warm; great for seasonal layering indoors.
• Cotton-linen blends: breathable with a natural feel; versatile for year-round use.
• Outdoor/water-resistant: designed to help repel moisture and stains on patios; fabric may feel firmer than indoor options.

Check product descriptions for care instructions and choose textures that fit your comfort and maintenance preferences.

Care varies by fabric and trim, so always review the product’s care details first. In general, you can try:

• Prep: close zippers and turn the cover inside out.
• Wash: use cold water on a gentle cycle with mild detergent; consider a mesh bag for delicate textures.
• Dry: air dry flat or tumble on low if allowed; avoid high heat to help maintain shape and texture.
• Spot care: for tassels, pom poms, or embroidery, spot clean to help preserve details.
• Finish: lightly steam or fluff; brush nap fabrics (like velvet or faux fur) with a soft brush.