The Blueflex Gel Memory Foam Contour Pillow features a revolutionary patented technology that combines the benefits of ViscoFresh breathable memory foam with tiny gel beads. The result is an all new material with the cradling comfort of memory foam plus superior support and optimum sleeping temperature. Blueflex senses where heavier parts of your body require greater support and automatically increases the support factor with a greater concentration of gel particles. Two bolster sizes enhance a comfortable sleeping position for side or back sleepers. The result is a healthier sleeping posture. Blueflex transfers heat away from the body keeping you at the ideal sleeping temperature. Blueflex uses plant-based ingredients and green tea, making it a fresh smelling product. Personalized support, no overheating and no odors, just the most advanced level of comfort available. Advanced comfort cover is made with breathable, moisture management fabric that wicks away moisture to keep you comfortable. Cover has zippered closure and is machine washable/dryable. Pillow made in USA, cover made in China. Blueflex 2-Inch Gel Memory Foam Contour Pillow.