If you've never owned a mesh back chair, then you're in for a real treat with this mesh back ergonomic task chair with a Soft Foam seat. The ventilated design allows air to circulate to your back, keeping you cool and comfortable enabling you to concentrate on the task at hand and increase your productivity. This chair has important features such as an innovative curved back with lumbar support, pneumatic seat height adjustment, and the ability to recline. Aesthetically pleasing ribbed details and arms make this computer chair a welcome addition to your workspace whether you work in the office or from home. Upgrade your seating with this designer executive office chair and make your workday much more enjoyable. Features 【ERGONOMIC BACK SUPPORT】Breathable mesh，adjustable headrest armrest and firm lumbar support from an S-shaped structure. This ergonomic chair supporting your back while allowing air flow to keep you cool, large Size 20*18*3inch. The environment friendly high resilience seat cushion is good for sitting long hours. 【NUMEROUS ADJUSTABLE FEATURES】Independently adjustable headrest, lumbar support, armrests, and cushions support multi-level height adjustment to suit different body types. Recliner office chair backrest supports 90 to 135 degrees tilt adjustment. 【BREATHABLE MESH CHAIR】The mesh back and mesh seat keep air circulation for extra comfy. High quality mesh resists abrasion and transformation, it makes the high back computer desk chair good for sitting for 4 ~ 8 hours, perfect for a long day sitting. 【DURABLE & RELIABLE CHAIR】The casters and air rods of the office chair have passed SGS and BIFMA certification. Seat Dimensions: 20.1"W x 18.1"D x 14.2"-16.2"H, 300 lbs maximum load, and silent casters metal base improved safety and stability. Silent casters effectively protect the floor. 【EASY INSTALLATION】The ergonomic chair is easy to assemble (about 15~20 minutes). Product Details Swivel: Yes Lumbar Support: Yes Tilt Mechanism: Yes Seat Height Adjustment: Yes Weight Capacity: 300 lb