... the need of environment protection and have passed SGS test. It shows its unique function of ventilation, sweat-absorbing, soft, no ... distortion, anti-mildew, anti bacteria and anti smell… Now, it’s popular to all-known brand enterprises, not because of ... its reasonable price but that its special advantages. 2.Memory Foam:Physical CharacteristicsDensity(kg/m3)65 - 75Hardness(asker c)50 ...