Thank you for viewing! The outer cover and the satin cover on the inside have been washed with a delicate laundry detergent, and the coil cushion part has been soaked and hand-washed, then dried in the sun. A renewed version of this product is currently on sale. This is the pre-renewal version. (The currently sold version seems to have a seat that is about 1 cm thicker than this one.) This cushion is made of breathable mesh material, with a navy and blue color scheme. It's lightweight and easy to carry. It may be helpful for office workers with back pain, those who travel frequently, and for driving or working from home. 【Details】 ● Size: Approximately 40cm wide, 80cm long, and 3cm thick ● Air Fiber Thickness: Approximately 2.5cm thick ● Weight: Approximately 0.7Kg