The King Size Bamboo Mattress Topper by Niagara Sleep Solution is designed for back pain relief with its cooling pillows made from bamboo viscose material. The solid green topper features a 60% polyester and 40% bamboo viscose fabric type, providing a comfortable and insulated bed as the package dimensions are 15.0x11.2x7.0 inches. Easy to care for with machine wash instructions, this Asian-style topper offers a square shape and fitted closure for a secure fit in the bedroom. Perfect for adult individuals looking for a cooling and supportive addition to their mattress.