SIHOO Ergonomic Office Chair Mesh Computer Desk Chair with Adjustable Lumbar Support High Back chair for Big and Tall Light Gray

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. Furthermore we promise 24-hour online service 30-day free returns 60-day free exchanges and 1095-day warranty. SIHOO M18 Ergonomic office chairs can give you a unique sitting experience