Formed to fit the natural curves of your head, neck and shoulders, the ergonomic design of the Contour Gel Dough™pillow correctly aligns the spine for comforting sleep. Infused with temperature-regulating Z™Ggel, the Gel Dough®formula creates a cooler, softer memory foam. A beautiful and soft Tencel™ mesh removeable cover adds the temperature- and moisture-regulating comfort of eco-friendly fabric. Cover: 100% Tencel™, Fill: 100% polyurethane gel foam