[Adjustable Headrest]: The curve-shaped headrest is designed based on ergonomic ideas, which makes your head and shoulders rest comfortably after long time task work. The headrest height is up and down movable that can match different stature, and it is adjustable in 30-degree angle, which allows you to move your head to a comfy posture no matter sit or lean back. [3D Armrests]: The armrests are PU padded and soft, it is 3D movable built that can be adjusted up and down, back and forth, also can turn inwards and outwards both in 15-degree. This is designed to meet people’s fantasy and more demands from an office chair that you will use in long time. [Lumbar Support]: The curved and large lumbar support is specially designed for office workers that can fit your waist well, and it adopts tight and high resilient mesh fabric to firmly hold up your waist. It can help protect your lumbar in long period sitting and relieve the pressure. [Breathable Mesh Fabric]: We use high class mesh material for the chair, from the cloth tightness, sense of touch and durability, it is all better than other normal ones. Its strong resilience force and high density quality offer you a comfortable seat at home and in the office. What’s more, it is very breathable comfort that can keep your back cool and sweat-free even in warm days. [Excellent Structure]: This chair is ergonomically structured in shape, body proportion and material use. Also, we have strengthened the seat , back and headrest, and use sturdy metal material for the base and legs which is strong enough to bear 300lbs weight. The PU casters are mute in movement and can protect any floor well.