Drawing on pressure mapping technology, the Lumbar Pillow features die-cut foam down the center to reduce pressure along the spine, while maintaining density on the sides for the lateral support. It&';s self-inflating to allow a personalized level of support and can be adjusted with one hand to add critical comfort to bad seats anywhere. Specs Weight (Standard) 3.6 oz Weight (Metric) 0.10 kg Width (Standard) 7 in Width (Metric) 18 cm Length (Standard) 16 in Length (Metric) 36 cm Thickness (Standard) 2.4 in Thickness (Metric) 6 cm Fill material Urethane Foam Fabric 50D polyester Country of Origin USA*Built of the Finest U.S. and Global Materials