CONTOURED DESIGN: Unlike other neck pillows, the Evolution Cool is designed with proprietary dual-density memory foam that provides total comfort whether your head leans forward or to the side. COOLING SYSTEM: Designed with an innovative cooling vent technology that keeps the neck and head cool to ensure you get the rest you need on those long plane rides or road trips. RESIZING PIVOT LOOPS: Two front pivot loops allow you to tighten or expand the pillow to fit small and large necks making this the perfect travel accessory wherever you go. PORTABLE AND CONVIENENT: The Evolution Cool Travel Neck Pillow was built for convenience and portability; each comes with a deluxe high quality travel bag that allows it to compress down to its size. WASHABLE: No need to worry about all those unwanted nasty smells or dirty germs, the Cabeau Evolution Cool Travel Pillows removable cover makes it easy to wash and keep clean for your next vacation.