The YUXIANG OE-HBM-680 Ergonomic High-Back Mesh Office Chair with Adjustable Headrest and Lumbar Support balances professional visual appeal and functional performance for modern work environments. Its streamlined silhouette features a matte light gray reinforced frame paired with dark tone mesh and fabric elements, creating a polished, understated look that aligns with contemporary office design schemes. The five-star wheeled base creates a stable, evenly weighted foundation, while open mesh back and contoured seating zones maintain a clean, uncluttered profile that avoids visual bulk in varying workspace layouts. Construction prioritizes long-term durability and breathable comfort. The backrest uses tensioned breathable polyester mesh stretched over a reinforced nylon frame, paired with a 70mm thick padded back section. The seat features a high-resilience polyurethane foam core with fabric upholstery, with a finished cushion thickness of 90mm and 45 kg/m³ foam density for consistent weight distribution. Frame components for the back and arm supports are made of glass-fiber reinforced nylon with a matte light gray finish, while the five-star base uses a reinforced nylon structural core with a matching painted light gray finish. Height adjustment relies on a Class 3 carbon steel gas lift with black powder coating, the tilt mechanism chassis is constructed from 3mm thick cold-rolled steel with black anti-corrosion coating, casters feature 60mm diameter polyurethane tread with black nylon housing, and armrest pads combine a soft polyurethane padded top with a hard nylon support arm. The headrest uses a fabric-wrapped foam cushion mounted on an adjustable nylon bracket. Functional features are tailored for extended daily use. Pneumatic seat height adjustment operated via a side lever delivers 85mm of travel to align with varying desk heights, while the synchronized backrest tilt offers a 15° recline angle that locks in the upright position. Armrests provide 80mm of vertical height adjustment to match user elbow height, and the headrest adjusts with a 25° angle pivot and 50mm height travel to support neutral neck posture. A contoured built-in 240mm high lumbar support zone aligns with the natural lower back curve, full 360-degree swivel enables multi-directional workspace access, and dual-wheel casters roll smoothly on hard floors and low-pile carpet. The chair supports a maximum user weight of 150 kg, with a 100mm gas lift stroke, 40000 cycle caster rolling durability, and 250 kg static load rating for the tilt mechanism, built to support 8 hours of daily use. The clear width between armrests measures 540mm, and overall dimensions are 650 x 680 x 1310 mm, with a net product weight of 20 kg. This model is well suited for a range of work settings. It provides appropriate ergonomic support for 8-hour daily desk work in corporate open-plan offices, fits compactly in standard home desk setups for remote work in home office workspaces, complements modern decor in executive private offices when paired with a 2.4 m executive desk, accommodates diverse user body types in co-working shared spaces, and supports multi-directional discussion in conference meeting rooms thanks to its swivel and tilt functionality.