SIO Super Soft Bubble Space Memory Foam Pillows Contoured Neck Cervical Vertebra Health Care,White Size:15.75*9.84*3.94inch Material: 100-percent Polyester fiber Contoured design provides therapeutic support Promotes optimal spinal alignment for back and side sleepers Eliminates painful pressure points High and low loft options, for your choice of comfort Will fit standard size pillowcases External material:super soft material