1. Humanscale Freedom Chairs

  Freedom Chairs, designed by Niels Diffrient, uses a "intelligent counter-balance recline mechanism" that senses sitter's weight and adjusts the backrest to responds to the sitter's movements and provides support. Humanscale chair is designed to give the maximum ergonomic benefit to the sitter.

  There is no adjustment required once the chair is fitted. As they say, Humanscale prefer to make complicated things simple than simple things complicated.

  With its features - self-adjusting recline; dual pivot backrest; synchronized armrests; dynamic headrest - this is the best office chair you can get today. 

2. Herman Miller Aeron Chairs

  Herman Miller chairs have revolutionized office furniture. Their Aeron Chairs,  designed by Don Chadwick and Bill Stumpf, was named "Design of the Decade" by the Industrial Designers Society of America (IDSA) and Business Week magazine. It has three sizes, for computer work, general office work and formal meetings.

  For a healthier posture and enhanced lower-back comfort they have provided ergonomic solution named PostureFit. Pellicle suspension system distributes weight and provide conforms to each person's shape. Air passes through the Pellicle so the sitter stays cool.

  Comfortable suspension; ergonomic support; natural tilt; distinctive aesthetics are some of the features that makes this office chair one of the best.

3. Steelcase Leap Chairs

  Steelcase claim that their Leap chair was developed based on the research of 27 scientists, 11 studies and 732 test participants. This chair hair has synchronized movement as sitter. It changes shape of it's back to support the sitter's spine, allowing reclining without pulling away from a desk.

  Adjustable seat depth; thermal comfort; lower back firmness; height, depth, width, and pivot arms; natural glide system; flexible seat edge; upper back force are the features that give this chair high reviews and put it in the 3-rd place of this list.