The special material with a new feel supports your body movement while you sleep. Made of special material with excellent elasticity and flexibility. New floating feel This pillow uses a special material (TPE) for a new floating feel. There is also a built-in seat that allows you to adjust the height. The height adjustment seat is also made of breathable material. The special material with a new feel supports your body movement while you sleep. What is TPE? Thermoplastic Elastomer. Special rubber material with excellent elasticity and flexibility. The material recovers quickly after bending and stretching, supports your body during sleep and turning. The three-dimensional structure disperses body pressure on the neck and shoulders, and has excellent breathability. Antibacterial and deodorizing treatment. Washable cover and body Cover side fabric is antibacterial and odor resistant. The cover is machine washable with a net. Filling is hand wash only. The shape of the pillow is normal. Uses a special (TPE) material with excellent elasticity and flexibility. For sleeping with a new floating feel. Elastic and durable material with good breathability and 3D construction. The material restores quickly even after bending or stretching, supports your body movement while you sleep. The three-dimensional construction disperses body pressure on the neck and shoulders, and has excellent breathability. The height adjustment sheet (with 1) is made of breathable material. Antibacterial and deodorizing treatment (cover surface fabric). Washable (cover). Pillow height: height adjustable. Pillow shape: Ordinary Composition: Cover Outer Fabric: 100% polyester. Lining fabric/gusset: 100% polyester. Main unit Filling: Thermoplastic Elastomer (TPE) Height adjustment sheet Outer Fabric: 100% polyester. Gusset: 100% polyester. Filling: Polyethylene Machine washable (use a net) *Cover only. Hand wash *Insert only