UNO Travel Essentials - The Ultimate Comfy & Stylish Neck Pillow Hydrophilic Memory Foam, Nylon(85%), spandex(15%) Adapt to most of the postures, including lean back, side sleeper, stomach sleeper, back sleeper, and lumbar support. Provide nearly 360-degree support for head as a neck pillow. Extended use as an auxiliary support between the upper and the lower back. High density hydrophilic memory foam provides soft touch and permeability, washable Spandex pillowcase. The pillow can be compressed into 1/3 of the original size when stored in the pouch bag.