Where first class comfort meets customizable support. The first pillow that adjusts to you, with three ways to adjust the Evolution X provides you with the opportunity to customize the height, circumference, and closure to your preferred fit. X-perience the difference when comfort and support perfectly intersect to provide an extraordinary travel experience. ENGINEERED SUPPORT - NOT A TRADITIONAL PILLOW: Built for extended naps, the Evolution X Neck Pillow is intentionally engineered to feel different (like a well-fitted new shoe, a brief adjustment period may be needed to get used to our unparalleled chin support). At its core are precision-designed plastic support shells, crafted for reliable neck support that flawed, traditional pillows cannot provide.