1) 1cm embedded layer of soothing gel over a contour shaped memory foam pillow 2) The air chamber constructed surface provides great air ventilation between the user's head and pillow for super cool sleeping 3) Gel material side: consisting of numerous air chambers, this material elevates the user's head and provides a great airy feeling in summer 4) Providing pleasant dry and airy sleeping conditions, these pillows are absolutely great for use in summer 5) Gel layer gently cradles the user's head, neck and shoulders for a restful, floating sensation 6) High-density, contoured memory foam supports head, neck and shoulders to allow muscles to relax (rather than tense up as with regular pillows), and helps keep the neck and spine properly aligned for a restful sleep