About This Comfort: The cushions are made of one-piece foam-molded qualitative foam and have a high resilience and are even softer. The upper cushion is also made of qualitative foam. The double-layer cushion makes the chair more comfortable to sit on, and the sponge is not easy to collapse after sitting for a long time. Users do not need to spend money to buy additional cushions after the experience, will not cause discomfort to the buttocks after sitting for a long time. Breathability: the back of the chair is made of strong breathable mesh, high elasticity and high load-bearing, and it is not stuffy and sweaty even if you rely on it for a long time. Ergonomics: the back frame is designed according to the human body curve, can fit the waist well to provide support to effectively protect the spine. Function: adjustable height armrests to meet the needs of people of different heights to increase office comfort. Durability: the whole chair passed BIFMA certification, thickened tray increases the overall load bearing. Mute PU wheels are smoother and more suitable. Suitable for people under 400 pounds. Overview Brand : WITTLONG Color : Grey Frame Grey Fabric Product Dimensions : 18.1"D x 20.5"W x 39"H Special Feature : Adjustable Height, Ergonomic, Rolling Product Care Instructions : Spot Clean Material Plastic : Item Weight 37.8 Pounds : Material Plastic : Item Weight 37.8 Pounds Frame Material Plastic : Seat Material Type Mesh; Molded Foam : Frame Material Plastic : Seat Material Type Mesh; Molded Foam