- Height adjustable: manual button control with left-right synchronous lifting and lowering to avoid cervical scoliosis and secondary injury. An ergonomic design provides greater comfort and helps fully relax neck and shoulder muscles. - Open design: neck position remains open to avoid interference with the neck and respiratory tract, ensuring comfortable wear while reducing moisture and heat buildup. - Premium materials: suede and fabric combination enhances permeability and durability, offering a delicate touch, skin-friendliness, low friction, and a long service life. - Easy to wear and versatile: once worn, it does not disrupt daily activities. Suitable for use in the office, at home, or on the go. Can also serve as a travel pillow for trains or planes, maintaining proper neck position while walking, studying, or watching TV.