I did not give this five stars simply because once I received the chair I realized the existence of this: "WARNING: This product can expose you to chemicals including Di(2-ethylhexyl) phthalate (DEHP) which is known to the State of California to cause cancer and birth defects or other reproductive harm." I try to steer away from harmful chemicals and such especially in articles I am going to be touching and breathing near day in and day out for years on end. If like me you happen to prefer organic food and articles made of more natural materials then you might look around and consider another chair. Obviously that will probably be more expensive but if you possibly have years of use stretching before you then you might reconsider. Mostly this is my fault as I did not read to the end of the product description. Other than the foregoing a great buy and a comfortable chair!