The Memory Foam Travel Neck Pillow is specially designed to be just the right softness to provide the most comfortable support for your neck. Unlike anything on the market, this newly released and improved version features a built-in removable (memory foam) insert so you can adjust the thickness of the pillow to your liking. Why is this such a desirable feature? The answer is that you want to be able to adjust the thickness to your sitting position. For example, if you sit more upright, you want to be able to reduce the thickness so that it doesn't push your head forward to the point where it puts too much pressure on your neck. When it comes to pillows, the old-fashioned "one size fits all" simply doesn't work, because a pillow that works for someone else may not work for you. By adjusting to fit your ideal resting position, you can now sleep comfortably, whether you're sitting in an airplane seat or resting in your recliner at home. The heat-sensitive memory foam will mold to the natural contours of your body for a customized fit. It helps relieve neck and shoulder tension caused by prolonged sitting. Use it on airplanes, in cars, or anywhere you need extra support for your neck and shoulders. You'll love the soft, comfortable feel of this pillow. The pillow is covered in a premium, machine-washable velvet pillowcase. The built-in elastic band can easily fix the pillow to your carry-on luggage without taking up extra space. Size: 30*28*9cm Filling material: 100% polystyrene (foam particles) Filling weight: about 110g Color: gray