Nap shams have a classic 2" flange border and an envelope closure to hold your pillow insert snugly in place.
Size: 20" x 36"
Sham vs. Pillowcase
Shams and Pillowcases are both used to protect pillow inserts, but there are a wide variety of constructions. Typically, shams are more fitted and employ some method of closure to keep the pillow in place, whereas pillowcases loosely encase the pillow and are open on the side.