Description: ?BREATHABLE MESH CUSHION BACK?The high-quality backrest with mesh fabric is flexible, by promoting good airflow, eliminating sweat and moisture, suitable for long work and study, the seat cushion is filled with elastic, high-quality, breathable foam, which can relieve the buttocks pressure and provide comfort ?ERGONOMIC DESIGN?The office chair adopts high-density mesh, which fits the natural spine curve of the lower back, provides sufficient back support, reduces back pain, and provides back and waist protection for long-term sitting ?DURABLE MATERIAL?We choose high-quality mesh fabric, breathable high-density mesh to create this mesh chair. Built-in lumbar support made of high-quality PP, sturdy chair base and flexible casters made of durable nylon. ?HIGH QUALITY AND EASY ASSEMBLY?The high back office chair gas lift has been certified by BIFMA and SGS and passed the static pressure test of 1136kg. Our office chairs can support up to 120kg and are very easy to assemble