Down Alternative Pillow Inserts, 12 x 20 in., Set of 2, White

A good insert is the difference between a throw pillow that looks intentional and one that looks tired. This set of two is filled with an ultra slim 2D polyester fiber fill, a down alternative chosen for its resiliency and its smooth, even consistency next to other fiber fills. It holds enough loft to keep a pillow full and fluffy rather than settling into a flat pad with limp corners.

Each insert measures 12 by 20 inches and comes in white. The firmness sits in the middle of the range. There is enough structure to give a cover its shape and enough give that leaning against one is comfortable, which is the balance you want on a sofa where the pillows get used and not just arranged.

The covering is 100 percent cotton at a high thread count, cleanly finished, so the fill stays where it belongs and the insert is pleasant to handle on its own. That matters more than it sounds like it should, because a cover with a coarse or thin shell telegraphs right through whatever you slip over it.

One practical note on sizing. These are recommended for shams and covers of the same 12 by 20 dimension, not for going up a size. Match the numbers and the corners fill out the way they are supposed to.

They arrive vacuum sealed, which keeps the packaging compact in shipping and protects the loft until you open it. Cut the seal, give each one a shake, and the fill expands back out.