Sihoo M57 PRO Ergonomic Office Chair with Built in Footrest, Computer & Gaming Desk Chair — 4D Adjustable High-Back, Breathable Mesh, Dynamic Lumbar Support

★ 【Features】 Level-up your seating with a double-joint flexible headrest for custom neck relief; a 4-position integrated S-curve backrest that mirrors your spine; height- & depth-adjustable lumbar support in high-polymer elastomer; 4D linkage armrests (up / down, in / out, fore / aft, 360° pivot); plus an auto-balance mechanism offering a silky-smooth recline from 90°–130° with three lockable angles. Seat height adjusts through 10 cm of travel to suit every workstation.

★ 【High quality & easy assembly】 Tested to BIFMA × SGS standards and cleared a 2,000 lb static-pressure trial—so it’s rock-solid up to 150 kg. Each chair ships with clear, eight-step instructions; you’ll have it bolted together in about 15 minutes.

★ 【For long stints at the screen】 Breathable PE polyester mesh keeps air circulating, meaning no sticky back even on sweltering summer days. The hard-wearing weave resists sagging or fraying, so eight-hour sessions are a breeze and maintenance is as simple as a gentle warm-wash rinse.

★ 【Premium materials】 Aerospace-grade aluminium alloy base pairs with silent, floor-friendly castors for effortless glide. The reinforced PP fibre dual-back frame stays rigid under load, while PU-topped armrests wipe clean in seconds.

★ 【Warranty】 Enjoy complete peace of mind with our three-year parts & labour warranty. Spot an issue? Reach out and we’ll ship replacement parts—or a brand-new chair—free of charge.

Upgrade from the crowd-favourite M57 and feel the pro difference: click Add to Cart and treat your back to Aussie-approved comfort today.