Simple&Opulence 2-Pack Pillowcase Set, 100% Pure Linen, Solid White, Standard 100% Linen 2 pcs Standard Pillowcases dimensions: 19.75"x 29.5" Weight of Linen: 160 GSM (grams per square meter) 100% Pure Linen is stonewashed, won't shrink any more and gets softer with each wash Twice as strong as cotton, linen gets stronger when wet and can stand up to heavy use and laundering Prized for its breathability and softness, linen keeps you cool in the summer and warm in the winter