... sitting upright, leaning forward or lying on your back.1. Ergonomicaly DesignA zero gravity chair is ... spine, making it an ideal sitter for people with back problems or for those who experience physical discomfort ... while reading, watching TV, video gaming, chatting with your partner, or simply taking it easy. 4 ... canves and at front durable 600D/PVC at back with spong in the middle work for the winter3 ...