... foam Mattress main structure:1. high grade knitting fabric +2.5cm 50density memory foam for quilting, ... 30kg/m3, for bottom layer4. high grade knitting fabric + 1.2cm soft foam for quilting, for base5 ... in carton /color box with non-woven fabric,With its high quality viscoelastic foam,comfort mattress ... /m2, three-dimensional permeable mesh fabric Inner cover 90g/m2, handmade cotton fabric Top layer,7.5 cm ...