Ergonomic Office Chair: Athena ergonomic Collection office chair features built-in lumbar support to help maintain your spines natural curve and keep you comfortable. It helps reduce lower back fatigue and pain, promoting better spine health. High-Quality Materials: Athena Collection comfortable computer chair is made with skin-friendly, breathable mesh to keep you cool and comfortable. It features a high-density sponge cushion and supports up to 300 lbs. Thick Cushion & Double Comfort: This desk chair features a high-density, elastic sponge cushion thats soft and comfortable, covered with breathable mesh fabric. The inner layer is made of plywood. The three-layer design ensures the seat stays stable and durable, even with long-term use, and helps prevent sinking or deformation. Free Adjustment Function: You can adjust the seat height using the handle beneath the seat to fit different desk heights. By turning the knob under the cushion and pulling out the lever, the chair can r