Travel Neck Pillow is specifically designed in such a way that it has just the right softness to provide the most comfortable support for your neck. Unlike anything on the market, this newly released and improved version has a built-in removable (memory foam) insert so you can adjust the thickness of the pillow based on your preference. Why is this such a desirable feature? The answer is that you want to be able to adjust the thickness based on your sitting positions. For example, if you sit relatively straight, you want to be able to reduce the thickness so it will not push your head forward to the point that puts too much stress on your neck. When it comes to pillows, the old school of "one size fits all" just doesn't cut it since what works for others might not work for you. By dialing in the ideal restful position just for you, you now can sleep comfortably whether you are sitting straight on an airline seat or resting on a recliner at home. The thermo-sensitive memory foam will mold to your body's natural contours for a custom fit. It helps relieve the tension in your neck and shoulders due to prolonged sitting. Use it on a plane, car, or anywhere you need the extra support for your neck and shoulders. You will definitely like the soft and comfortable feel of this pillow. The cover is made of high-quality, machine-washable velour cover