Quality Certified: Our sheets are certified by BSCI and OEKOTEX Standard 100, ensuring responsible manufacturing and high standards in materials. Warm Tips: Hightemperature tumble drying will cause the cotton fabric to shrink and crisp, therefore, please tumble dry on low heat. Wash your light cotton items separately from dark cotton items. The cotton fabric will become softer with every wash. Extra Deep Pocket & Smart Tag: The depth of the pocket measures 19, it can be stretched up to fit 20 inches, 22 inches, 24 inches and 26 inches mattresses. A stretchable elastic all around the entire sheet ensures a tight, secure fit, staying smooth and snug. A smart tag here clearly indicates the head/foot side. Cotton 1Piece Fitted Sheet Only: cotton and sateen weave make the sheets more breathable and comfortable. The pure white King sheet measures 78 W x 80 L inches. About Color Difference: All sheets are for real shooting, and due to technology, display, light, environmental reasons there may be a slight deviation phenomenon, please in kind prevail.