The Wing Back Support is a back support cushion designed for use by individuals with back pain, weakness, or injury. This support can be used in standard chairs, office chairs, or on car seats and provides lateral support for correct posture as well as lower back support. This cushion is available in polyurethane foam, six-pound VitalFoam Memory foam, or Memory Lite foam, and all models include an adjustable strap to secure the cushion to a car seat. DIMENSIONS: The polyurethane foam model is 13 x 16 inches and the other models are 13 x 14 inches, COLOR: All models are available in navy, pearl grey, or black. The polyurethane foam model is also available in khaki.