1. MEMORY FOAMNeck pillow consists of memory foam with slow rebound, fits perfectly to the body curves, head and neck an appropriate support height, is soft but not crumbly, is durable and perfectly retains the original contour. 2. ERGONOMIC DESIGNOrthopedic cervical spine was designed to provide head and neck with maximum comfort and support, promote proper spinal alignment, and reduce pressure points. It features a neck support area, a side sleeping area, a head support area, and a shoulder adjustment area to provide you with complete support and give you a comfortable sleep all night long. 3. WITH ZIPPERAt the bottom of the side sleeper pillow, there is a zipper that makes the pillow cover removable and washable. You can remove the pillow cover to wash it separately after some time. 4. SOFT COVERPillow cover of this neck support pillow is made of yarndyed airlayer fabric, it is very soft and comfortable, skinfriendly and breathable. We two sizes to choose from, suitable for adults or teenagers.