The ergonomic chair provides 4 supporting points(head/ back/ hips/ hands) and a proper lumbar support. It''s easy to adjust seat height, headrest, backrest and flip-up arms to meet different needs, good for sitting long hours. Suitable for people of about 5''5" to 6''2".�LARGE MESH SEAT】- The office chair is larger than other chairs, and it could accommodate different body build. The whole Chair Dimensions(including the arms): 25.6"W x 22"D x 45.3"-54.9"H, the Seat Dimensions: 20"W x 19.3"D x 18.5"-22.05"H. Loading Capacity: 280 lbs. The recline function makes you tilt the backrest back (90~120°) or sit straight freely.�ADJUSTABLE FLIP-UP ARMREST】- Folding the armrests up, you can push the executive office chair directly under the desk to use more area. It''s easy to raise or lower the folding armrest by pressing the black buttons on the armrest.�BREATHABLE MESH CHAIR】- The mesh back and mesh seat keep air circulation for extra comfy. High quality mesh resists abrasion and transformation, it makes the high back computer desk chair good for sitting for 4 ~ 8 hours, perfect for a long day sitting.