Featuresfabric type : outer surface is a fabric woven from 52 wires 100% cotton yarn and the bottom surface is a 1st quality water and liquid proof membrane coating 100% liquid proof : protects the pillow from sweat and mouth discharge. antibacterial : prevents the formation of dust mites and other allergies breathable zippered, easy to remove can be fitted. usage while preserving the structure of your pillow, it fits your pillowcases of the same size, providing both a beautiful appearance and a comfortable sleep. it is soft, comfortable and light. it does not stain and does not create bad odor. Improved version for clearer understanding and better search visibility. Suitable for users seeking detailed and reliable product information.