Comfortable Ergonomic Office ChairThe cushion is made of high-density and high-resilience foam. It is durable, not easy to collapse even after long hours of sitting, soft with excellent elasticity. The curved seat provides a wrapped-in comfort, helping to relieve hip pain. Ergonomic design fits the natural curve of the spine, relieves back pressure and improves blood circulation Breathable and Durable, Load up to 350lbsThe breathable mesh backrest helps keep your back cool and sweat-free. PU leather on the seat and armrest surfaces is skin-friendly, wear-resistant, waterproof and easy to clean. The chair features a sturdy frame and a Class-3 gas lift, certified by BIFMA and SGS, and supports up to 350lbs Adjustable Deak ChairThe lumbar support improves body posture and can be adjusted up and down 1.6 inches to find the support that suits you best. The seat height adjustment range is 3.94 inches (from 18.11 to 22.05 inches) to accommodate different heights and body types. Wit