... makes it's soft , confortable) High density elasticity foam: D30~45 for seating,D27-D30 for backrest, noted ... cotton or goose down between the leather and foam, no sagging e) use 2.8MM thickness ... Inner layer: White Nonwoven bag + Middle layer: EPE Foam + 5 layer papaer carton+ Outer Layer:Plastic bag ... . d) Foam or corrugated cardboard wrapping with corner protection. ( ...