This item is new and unopened. About this product: Three-dimensional structure that supports the waist. It approaches the pelvis, sacrum, and spine to maintain a posture that prevents fatigue. Only when using this product: [Side] The raised shape fits the buttocks and thighs. [Three-dimensional seat] The sacral elevation slope works to lift the sacrum, which is in the center of the pelvis. [Back] The shape that covers the waist pushes out the waist, giving a feeling of straightening the spine. [Back & Protrusions] The large back and protrusions support the sacrum and straighten the spine. [Uses high-resilience urethane] High-resilience urethane absorbs impact and supports "comfortable sitting". [Uses mesh material] Good breathability and less stuffiness. Supervised by Dr. Kenji Kojima, Director of Kojima Orthopedic Clinic. At home, in the office, as a floor chair. "Three-dimensional structure" creates a beautiful posture that prevents fatigue! Correct posture is important! ① The large back and protrusions support the sacrum and straighten the spine. ② The raised shape of the sides fits the buttocks and thighs. Holds the pelvis. ③ The three-dimensional seat works to lift the sacrum, which is in the center of the pelvis, with a sacral elevation slope. "High-resilience" urethane absorbs impact & distributes body pressure! High-resilience urethane absorbs impact and supports "comfortable sitting". And because body pressure is distributed, it is less tiring. Maintains beautiful posture! Three-dimensional structure x high-resilience urethane (body pressure distribution & impact absorption) = maintains a posture that prevents fatigue. # # Prevents fatigue Navy Orthopedic clinic supervision Kenji Kojima Pelvis Sacrum Spine