For added support for your spine, try the Therm A Rest Lumbar Pillow. The die cut foam down the center of the pillow reduces pressure along the spine while adding lateral support with solid foam sides. Easily self inflates, with one handed adjustment. Die cut foam down the center reduces pressure along the spine. Solid foam sides add lateral support. Self inflating with one handed adjustment. Polyester top and bottom fabric. Urethane foam. Size: 16x7x2.4 36x18x6 cm. Wt. 4 oz. 120 g. Made in USA of US and imported materials.