ProtoArc Ergonomic Office Chair - EC300 Adjustable Lumbar High Back Desk Chair, Sliding Seat, 3D Headrest, Wider Armrests, 4 Tilt Backrest Mesh Chairs for Home Office Long Hours Sitting - Black

Features

• Ergonomic Support, Redefined for Long Hours: The EC300 ergonomic chair is engineered for the modern professional who demands all-day comfort. From its height-adjustable backrest and precise lumbar support to the pressure-relieving foam seat, invest in 8+ hour workdays comfort. It adapts seamlessly to users from 5'4" to 6'1" (Capacity: 220 lbs)
• Height Adjustable Backrest: Get a tailored fit for your torso. The backrest adjusts through 5 height settings, ensuring the key support zones align perfectly with your spine. This intelligent design allows the chair to accommodate a wide range of body types, providing a solid foundation of comfort
• Precise Lumbar & Sacrum Support: Experience targeted relief where it counts. The lumbar support is designed to accurately cradle both your lumbar spine and sacrum with a wider surface area. This delivers full lower back support, effectively reducing pressure and promoting a more natural seated posture
• Customizable Seat Depth: The seat slides forward and backward with a 5-position, instant-lock mechanism (50mm/1.97" range). This lets you optimize thigh support, maintain proper back contact, and relieve pressure behind the kneesperfect for both taller and shorter users
• Premium Foam Seat Cushion: Sit softly, stay supported. The ergonomic desk chair features a premium 55 high-density foam seat cushion engineered for exceptional pressure distribution. It delivers a perfect balance of softness and firm support, ensuring lasting comfort without sagging, so you can stay focused and comfortable from morning until evening
• 3D Dual-Axis Adjustable Headrest: Your neck's personal pillow. The advanced headrest offers 3D flexibility: up/down, forward/back, plus independent pillow and overall rotation. This dual-axis design allows micro-adjustments to perfectly cradle your head and neck, alleviating tension from stiffness or forward posture
• 4-Position Recline & Solid Build: Seamlessly transition between tasks with four locked recline angles (90 Work, 105 Read, 120 Lounge, 130 Rest), all with adjustable tilt tension. Built on a durable alloy base with a SGS Class-4 gas lift and 60mm quiet-roll casters, the computer chair promises stability, safety, and smooth mobility for years of reliable service