The Knoll Generation ergonomic chair uses an innovative high performance elastomer to make up its unique flex back net and dynamic suspension control. The Generation chair back flexes as the user moves, providing both structure and flexibility of motion. The elastomer does not crumble or sag with time or pressure. The Knoll chair's flexible back and figure 8 structure extend the range of motion and supports the shoulders and the lumbar spine. Dynamic suspension control uses the high performance elastomer to provide a smooth ride using no metal links or springs. The arms are positioned to provide continuous lumbar support even when sitting sideways and with the high performance option, the arms are width and depth adjustable and pivot in and out. Additionally, without the complex control elements needed in a more traditional chair, the Generation is light and requires fewer parts and processes to manufacture, making it more environmentally friendly.
| Height range | 39.25" - 44.5" Glides reduce height by 0.25" |
| Width | 21" armless 28.5" with arms |
| Depth | 26" Excluding base |
| Arm height range | 22.75" - 32.5" |
| Base diameter | 26.75" |
| Weight | 37 lbs 39 lbs |
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The Knoll generation is available armless or with two optional types of armrests:
Height adjustable arm: Arms height adjust over a 4.5" range. Arm pads are non-adjustable.
High performance arm: Arms height adjust 4.5" as well as pivot 45°, move 1" in width and 1.5" in depth.

Select either a plastic base to match the frame color or a polished aluminum base.

Cylinders are available in three heights. Seat height ranges are listed below:
| Thin Seat Foam | Ultra Seat Foam | |
|---|---|---|
| Standard | 16.5" - 21.75" | 17.25" - 22.5" |
| Low | 15" - 19.5" | 15.75" - 20.25" |
| High | 17.75" - 23.25" | 18.5" - 24" |
This padded lumbar support moves up and down within a 2.5" range to accommodate a variety of users.

There are three caster options:
Dark and light frame finishes are available.

Made of a high performance elastomer. This durable back provides dynamic support that responds to users' movements.

The seat cushion foam is available in two thicknesses: thin and ultra.

Generation fabric is made specially for the Knoll Generation ergonomic chair. It is 100% polyester and certified for 100,000+ double rubs.

Volo leather is a lightly corrected, aniline leather. The correction process refines the surface so it better accepts grain enhancement. Volo grade U leather receives a special retannage. This tightens the grain and provides a finer hand than other corrected leathers.

Sabrina leather is a full grain leather. It receives a special retannage which makes it a smooth, tight grain and supple leather. Sabrina is an excellent choice for both elegance and high traffic use. The average thickness is .9 - 1mm, and the average weight is 2.25 - 2.5 oz per square foot.
