If you suffer from back pain thanks to your desk job, you may want to check out the Sihoo M18 Ergonomic office chair, which features adjustable lumbar support.
Ergonomic office chair ERC-18F (Sihoo M18)
SIHOO High Back Ergonomic Office Mesh Desk Chair with Armrest & Lumbar Support, 300lb, Gray
Did they update the SIHOO M18? : r/OfficeChairs
Sihoo M18 Ergonomic Office Chair review
Sihoo M18 Ergonomic Black Adjustable Fabric Office Chair With Armrests and Mesh Back
M18, SIHOO's high back ergonomic office chair, can more effectively support the back and head compared with low back office chairs and leather office chairs, while providing larger sitting area. The seat cushion is made of soft sponge to keep your hips comfortable. The backrest is made of high-stretch breathable mesh to avoid stuffiness. High quality is gauranteed with numerous tests.
SIHOO Ergonomic High Back Office Chair Adjustable Computer Desk Chair with Lumbar Support 300lb Orange
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