400 Thread Count Sateen Pillow Cases Set of 2 Silky soft sateen cotton pillowcases are made of ecru ultrafine cotton in a buttery smooth weave. Pillowcases showcase a beautiful pleat detail. This product is certified by Oeko-Tex an international association focused on textile safety and sustainable production. Oeko-Tex® tests for known harmful substances and chemicals as well as for acidity and color fastness. All components of the product must comply with stringent Oeko-Tex® standards to achieve certification. Certified by Oeko-Tex®. 100% cotton. 400-thread count. Machine wash cold, tumble dry low; warm iron as needed. Material: Cotton Dimensiones: 20" Width x40"D