The ERG-MESH-FR-700 high-back mesh ergonomic office chair from an unbranded line features a sleek all-black design defined by breathable geometric-textured polyester mesh across its tall backrest, paired with contoured, generously proportioned seat and support elements aligned to consistent, dimensionally stable layout specifications. Its polished die-cast aluminum alloy 5-star base supports a reinforced glass-fiber nylon back frame, with soft polyurethane casters mounted to each base point for smooth movement. The seat core uses high-density polyurethane foam padding, topped with matching mesh upholstery, while armrests feature soft PU padded surfaces secured to nylon support brackets. Internal structural components include a carbon steel Class 4 gas lift, 3mm thick stamped steel recline mechanism plate, and 12mm thick multi-layer plywood seat support board, engineered to support consistent long-term use. The mesh upholstery is tested to withstand 50000 abrasion cycles, the 45 kg/m³ density foam seat cushion holds its shape through repeated use, and the gas lift carries a static load rating of 1136 kg to support a maximum recommended user weight of 150 kg, with design accommodation for users up to 190 cm tall. Core functional features include pneumatic seat height adjustment with 100mm of vertical travel controlled via a side lever, a lockable 3-position backrest recline that tilts to 135 degrees, height and angle adjustable headrest for cervical support, 3D adjustable armrests that shift across height, depth, and pivot positions to support forearms, an integrated adaptive contoured lumbar zone, full 360-degree swivel, and a pull-out retractable under-seat footrest that extends to support legs during reclined rest. This chair fits a wide range of professional and personal work settings: it supports long-hour desk work at open-plan office workstations, balances upright task focus and reclined rest for home office study rooms, complements executive private offices with its polished all-black aesthetic, holds up to extended shift use in 24-hour operation control rooms, accommodates diverse user body types at co-working space hot desks, and pairs seamlessly with height-adjustable standing desk setups. Procurement teams should note each unit ships in two cartons, requires 40 minutes of assembly per set, and 135 units fit in a 20GP container at 85% space utilization, making it suitable for both small-scale and bulk furnishing projects.