Sleep.E Memory foam and bamboo charcoal pillow inner,super-elastic lining,breathable pillowcase,built-in support rod,protection of cervical MO2018LT Pillow inner material: 100% polyether polyurethane; Size: 24.8*13.0*4.3inches, Wight :2.6pounds Fabric: polyester fiber fabric, antibacterial anti-mite, breathable, anti-dust Features: Distinctive concave arc design fit together neck and shoulder gold curvature, available for side and back The large ventilation holes has a good effect on stiff neck, reducing turn over and fall asleep faster The ergonomic shape has a good effect on the high blood pressure, dizziness, headache, neurasthenia, frozen shoulder