U-shaped with Polyurethane foam.
Snap-closure restraining strap helps make transportation easy as well as keeping pillow in place when in use.

Manufacturer Warranty: 3 Year
Measurements: 12.25 Width/Inches, 11.75 Length/Inches, 4 Height/Inches
Weight (lb.): 0.5 Lb
Base Material: 100% Polyester
Filling Content: 100% Poly-Foam
Care: Machine Washable Cover
Country of Origin: Imported