High-density duvet cover made with Egyptian extra-long staple cotton, easy to use with a YKK zipper. - Fabric type: Egyptian extra-long staple cotton, 60 count, 300 thread count - Zipper: YKK, fully opens on one side - Number of buttons: 8 - Size: 155x210cm - Material: Egyptian extra-long staple cotton - Size: 155x210cm - Fiber length: 35mm or more - Fabric characteristics: 100% COTTON, moisture absorption, breathability, fluffy fabric, 300 thread count high density Color: Gray ■ Composition: 100% cotton (triple gauze, 60 count yarn, 300 thread count) ■ Specifications: 8 ties, YKK full-open zipper ■ Machine washable (use a net) ■ 【100% Cotton Triple Gauze】 Soft and gentle to the touch, the gauze is woven in three layers, making it durable and lightweight. It is finished with a fluffy texture that contains air. An air layer is created inside, providing excellent moisture absorption, breathability, and dissipation. It feels cool and refreshing in the summer and keeps you comfortable by retaining body temperature in the winter. The fluffiness increases with each wash, and it becomes more familiar to the skin. It has the characteristic of becoming fluffy and comfortable. ■ 【60 Count, 300 Thread Count】 Instead of the 40 count yarn commonly used for gauze, 60 count combed yarn is used for the weft. 60 count extra-long staple cotton 100% 300 thread count high-density fabric. A larger (higher) count number ⇒ finer yarn ⇒ the fabric becomes softer and more supple. The yarn is made finer for a softer and more supple feel. ■ 【OEKO-TEX Certification】 "OEKO-TEX" certification for textile safety. This certification is awarded to textile products that have passed strict examinations, including safety, environmental considerations in the production system, and consideration for people. ■ 【Seamless Finish】 The top surface has a seamless finish, so the seams do not touch the skin, providing comfort. ■ 【8-point fastening buttons, YKK zipper fully open on one side】 To prevent the futon from slipping inside the cover, there are a total of 8 futon fastening buttons inside (four corners + each center). The fact that one side opens completely makes it easy to put the futon in and out. The facing prevents the zipper from directly touching the skin. The zipper is a reliable YKK brand.