Optimum Elite Memory Foam Travel Neck Pillow - Black Outer Shell is 75% Cotton 25% Polyester - Filling is 100% Polyurethane Foam Includes Comforlite Ultra-Premium High Density Memory Foam Providing Optimal Comfort & Support for Your Head & Neck The Removable Cover Includes Dual Comfort Materials - One Side Soft and Cozy Plush and the other Side Cool Spandex Attaches to Luggage for Easy Transport Great for use at Home or On the Go!