The back hump shape fixes the cervical vertebrae to prevent head slippage. The grooves on both sides are of course adjusted to reduce pressure on the bones. The height of the front is increased to prevent excessive head tilt, which is beneficial for the health of the neckline. air to dissipate heat and cool, while keeping the human body cool. Lightweight and portable, simply fold the cushion into a ball and put it in your backpack or trunk. Enjoy your sleep on long flights. Suitable for planes, cars or trains, a must have for travel, providing great comfort and a good night's sleep for your journey. Also suitable for a nap in the office or at home. Comes with an eye mask for a more comfortable sleep. Washable This travel pillow has a zipper. The pillowcase is removable and washable. Keeping your pillow clean and tidy at all times Adjustable Rope 1. Meets different requirements for wide and thin neck sizes. You can adjust the tightness according to your wishes. 2. Fix the pillow and do not slip when you fall asleep. Specifications: Filling material: memory foam Pillowcase: Premium quality suede Colour: Grey Package included: 1 x travel pillow