Choosing the Right Insert for Your Throw Pillow Cover

A throw pillow cover is only as good as the insert inside it. The right insert creates structure, fullness, and comfort—while the wrong one leaves your pillow flat, floppy, or awkwardly stuffed. If you’ve ever wondered why your pillow looks underwhelming despite having a beautiful cover, the answer is likely the insert.

This guide walks you through choosing the correct pillow insert size, shape, and fill type to make your throw pillows look and feel just right.

What Size Insert Do You Need?

The general rule:
Choose an insert that is 1 to 2 inches larger than your pillow cover.

This sizing trick gives your pillows a full, plush appearance—especially in structured arrangements.

Types of Pillow Inserts

Depending on your needs and preferences, here are the most common insert types:

1. Down Feather Inserts

• Soft, moldable, luxurious
  
  

• Ideal for a relaxed, high-end look
  
  

• Can be "karate chopped" for designer styling
  
  

2. Down Alternative (Polyfiber) Inserts

• Hypoallergenic and affordable
  
  

• Firmer, holds shape well
  
  

• Great for everyday use or allergy-sensitive households
  
  

💡 Need structure in high-traffic areas? Choose a denser down alternative. Want softness for a reading nook? Go with feather inserts.

Tips for the Best Fit

• Avoid inserts that match cover size exactly—they tend to sag at the edges.
  
  

• For lumbar pillows, a snug fit (same size or +1” only in width) may work better than overstuffing.
  
  

• Always fluff and rotate your inserts to maintain shape over time.
  
  

Shop Pillow Covers That Fit Perfectly

At Pillowhan, we offer covers in all standard sizes—crafted to fit the most common insert dimensions. From 18x18" to 24x24" and beyond, find the perfect match for your living space.

➡️ Browse pillow covers by size