·【Sturdy and Comfortable Office Chair】Designed for 8+ hours of desk work. Fine-adjustable lumbar support, flip-up armrests, and a flexible headrest fit people from 5'5" to 6'2" for extended comfort. BIFMA X5.1 certified for the reliability of its sturdy and durable structure to ensure continued benefits.

·【Lumbar Fine Adjustment】Provides 8 levels of 2-inch adjustable support, precisely fits the L1-L5 lumbar spine, reduces lower back pressure by 50%, and relieves fatigue by evenly distributing weight.

·【Bigger, Cooler Seat】Enlarged cushion (19.3" (D) x 20" (W) / 18.5" (-57cm) H), made of exclusive Aerovith mesh, increases support by 30% and reduces pelvic pressure by 20% while ensuring continued coolness.

·【Reliable Base】Leak-proof SGS gas struts prevent accidental sinking and ensure stable height adjustment, paired with a durable stainless steel base that supports up to 400 pounds.

·【Attention to Detail】Wide, peel-resistant soft armrests, paired with a 90° flip function and silent PU wheels, roll smoothly under the desk to maximize your workspace without leaving marks on the floor.

·【Flexible Headrest/Backrest】Adjustable headrest height and depth provide tailored head and neck support for users from 5'5" to 6'2". The backrest can be locked at 90, 110 or 125 degrees to adapt to your changing focus needs throughout the day. (Choosing the right chair is essential for lasting comfort and continued productivity)