BREATHABLE BAMBOO CHARCOL CUSHION: The Etekcity Orthopedic Seat Cushion uses an infusion of charcoal, helps with ventilation, won’t retain odors and smells. Perfect for getting rid of the heat and irritation from a long time sitting completely. NO OXIDIZE AND FADE: Grey bamboo charcoal, which will not oxidize or discolor over time, is an upgrade to many other common yellow memory foam cushions on the market. PROMOTES HEALTHY POSTURE AND RELIEVES PAIN: Ergonomically designed seat cushion provides maximum support and comfort while keeping a healthy posture. Helpful with lower back pain, neck pain, tailbone injuries, sciatica relief and other spinal issues