The posturefit add-on provides sacral support that promotes a better upright stance while not reclining, and reduces the need for reclining. This posture is particularly better for computer or desk work. It is important to note that although the posturefit add-on can be removed, it cannot be added to a chair that wasn't built for it.
The default lumbar pad feels like a bar across your back and does not distribute support evenly. The posture fit add-on that does a better job providing broad support is build into the chair and cannot be added to one without it already.
The Capisco's shaped seat and back piece are intended to support a variety of positions with minimum obstruction, encouraging both in-place movement and position changes throughout the day.
The saddle posture, with legs spread apart and supported by the feet and buttocks only, supports good natural back posture and allows better blood flow than sitting with the thighs.
Because the saddle position exploits anatomy for natural support, it demands a certain amount of muscle tone. This develops naturally over a week or so, but can cause some discomfort in the meantime.
The Embody's back and seat flex to match the user's position, aiming to provide correct support at all times without dictating posture or restricting movement.
The Leap provides sufficient adjustability to fit all but the most extreme body shapes, and is tested to support 300 lbs. There is also a Leap Plus model which supports up to 500 lbs.