Sum Office Chair by Allsteel

STE-SUM-HW-BLK-FAB
  • Save 79%
Sum Office Chair by Allsteel
List price: $959.99  
$199.99
You save: $760.00 (79%)
+

Sum Office Chair in Black by Allsteel Low Stock

Interactive Prodcut Demo

An office chair that’s more than just comfortable, but automatically creates a perfect seating fit and posture for 90% of human shapes and sizes. Sum is made with several proprietary design features that provide completely customized, totally foolproof support for anyone who sits down.
And all without training, tuning, or trying to find controls and figure out which does what.

Sum's AutoFit lumbar system uses air displacement to automatically support the user's back, reduce pressure points, and improve circulation. Technology-driven performance and ergonomics. Style in a graceful profile. Models for every part of the office.

Features:

  • Tilt Tension Lock
  • Adjustable Height
  • Adjustable Seat
  • Ergonomic Motion
  • All Adjustable Arms
  • Multi-Surface Casters
  • Mogulus Onyx or Brown Upholstered Seat and Back
  • Synchro Tilt Mechanism
  • Built-in Lumbar Support

Dimensions:

  • Overall Size - 24.75" W x 25.5" D x 40" - 45" H
  • Seat Size - 18" W x 15" - 18" D x 17.25" - 22.25" H
  • Back Seat - 16" W x 24" H
  • Seat Depth - 9" - 12" D

We are not authorized Allsteel dealers.

Chair Features

Lumbar support:
Integral
Seat Dimensions:
18" W x 15" - 18" D x 17.25" - 22.25" H
Seat Back Dimensions:
16" W x 24" H
Swivel:
Yes
Arms:
Yes

Specifications

Warranty:
  • 10 Year Warranty with MadisonSeating.com
Manufacturer:
Allsteel
Dimensions:
24.75" W x 25.5" D x 40" - 45" H
Material:
Plastic/Fabric/Steel
Collection:
Sum Office
Color:
Black, Brown
Style:
  • Modern
Condition:
Open Box
Assembly:
Assembly Required
Alternate SKU:
SUM-HW-BLK-FAB

Weight Activated Fit. (sum-fit-images.pdf, 851 Kb) [Download]

Visual Spec Sheet (measurments.pdf, 473 Kb) [Download]

This chairs has great support for my back and is very comfortable. I also make great use of the adjustable functions.
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