the material we use is the pu . it has highly density, well spring. it quickly recover when press it. the material is soft. and the pillow is made according to the shape of human body . this kind of design can keep the blance of the back of the veterbrate, restrain the pain cause of the deformed bone . and boost the blood circle . it is can help you to fall asleep quickly. so many merit why don't to contact with us . the color and the specification of the pillow is unlimited. welcome to contact with us.