1. Material: leather, 3D mesh fabric, magnetic stones. 2. Soft, breathable, therapy. 3. using in car, office, ... uses 2 layers of 3D space mesh fabric and embedded magnetic stones, 35 3D-fibres in 1cm2 perfectly supports the body ... helps to circulate air and dispel moisture.3 groups of magnetic stones each emitting 1800GS are embedded between 2 layers, which ...