The High Back Ergonomic Mesh Office Chair with Adjustable Headrest, model ERG-MESH-HB-630, is an unbranded ergonomic seating solution designed for sustained daily use. Visually, it balances a sleek, professional profile with functional detailing: the streamlined mesh backrest curves to follow the natural spine, paired with a neatly upholstered seat and polished chrome-plated 5-star base that complements both formal and casual workspace aesthetics. The headrest sits atop the tall backrest, creating a cohesive, high-back silhouette that offers full upper body support without appearing bulky. At maximum adjustment, the chair measures 630 x 700 x 1220 mm, with a 470 mm wide, 460 mm deep seat and 570 mm tall backrest, proportions tailored to fit a wide range of users alongside standard 760 mm height office desks. It is offered in 4 color options to align with varied interior design schemes. Its construction prioritizes durability and long-term comfort. The backrest uses 100% breathable polyester mesh mounted on a reinforced polypropylene frame with a steel core, tested to 100000 Martindale cycles of abrasion resistance. The seat features a 70 mm thick core of high-density molded polyurethane foam at 50 kg/m³ density, upholstered in wear-resistant polyester fabric, with an internal frame of 2.5mm thick stamped steel. Support components include a QPQ-treated steel gas lift, polished chrome-plated steel 5-star base, and 60mm dual-wheel nylon and PU casters tested to 100000 rolling cycles; armrests are topped with soft-touch PU pads positioned 190 mm above the seat. The chair has a net weight of 21 kg, with a recommended user weight capacity of 159 kg. Core functional features support flexible, comfortable positioning: full 360-degree swivel for easy reach across work surfaces, 100mm of vertical seat height adjustment accessible via a side lever, 135-degree backrest recline with a single-position lock, and a headrest with 60mm vertical travel and 45-degree angle adjustment. A fixed contoured lumbar zone aligns with the lower back’s natural curve, while the waterfall seat edge reduces pressure on the backs of the legs during extended sitting. Dual-wheel casters roll smoothly across both carpet and hard flooring without marking surfaces. This chair is suited to a broad range of public and work spaces. It supports 8+ hours of daily desk work for corporate office workstations, fits remote work setups in home offices, adjusts to varied table heights for conference room use, and withstands high-turnover use in co-working shared spaces. It also works for computer desks and study areas, where the breathable mesh back maintains comfort during long study or gaming sessions, and its polished base finish aligns with the formal decor of executive private offices. For procurement planning, note that each chair ships in 2 cartons with a total packaged gross weight of 23 kg, per-set carton volume of 0.26 m³, and a reference assembly time of 40 minutes per unit. At 85% space utilization, a 20GP shipping container holds 135 sets. The product comes with a 5-year warranty, providing long-term value for high-volume commercial and institutional furnishing projects.