1.slow rebounded effect 2.zip-off velour fabric 3.rolled vaccum-packed comfortable, enviromental,healthy Memory foam mattress description:Certificate: As a professional foam making factory,Zhenfeng Enterprise devoted ourselves to make qualified foam with most favorable price. Our foam has passed the certificate of UL fire-retardant, BS5852,CA117,ROHS,REACH etc.1. the cover: velour fabric.2. ...