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Humanscale Diffrient World Chair – All Black Fabric Seat – 15 Year Guarantee

Designed By Niels Diffrient

The Humanscale Diffrient World Task Chair Black Fabric Seat is Humanscale’s first foray into all-mesh task seating. Designer Niels Diffrient wanted to create the most minimal full-function task chair ever made. With patented Form Sensing Mesh Technology the backrest perfectly conforms to the sitter’s entire back as if custom made for them.


£644.80 inc. VAT

Available 26th January 2024

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Delivered Free within the UK mainland

Product Details

The Humanscale Diffrient World Task Chair Black Fabric Seat with its Invisible recline harnesses the user’s body weight to automatically provide the right amount of recline for every individual every time. Its groundbreaking mechanism-free recline action leverages two parts of the chair’s frame to provide automatic balanced support throughout the full range of motion for maximum support.


Black Pinstripe Mesh back

Fabric seat Upholstered in Oxygen Black

Black Frame and Base

Height Adjustable Duron Arms

5 Star base

Adjustable Seat Depth

Sizing/Assembly & Warranty Information

  • Assembly
    3 Part Easy Self Assembly
  • Warranty
    15 Years
  • Seat Height Range
    371mm - 495mm
  • Seat Pad Dimensions
    495mm W x 400mm D
  • Back Height
  • Maximum User Weight
    135 KG
  • Country of Origin



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Delivery & Returns Information


Our standard delivery time on all orders FROM STOCK we aim to Deliver within 3-5 working days  (unless otherwise stated) MON- FRI  8AM TO 6PM and is  FREE OF CHARGE to mainland UK for all orders.

* Excludes the Scottish highlands which is chargeable.

If the item is ( Made to Order) you can find the lead time under the Add to Basket Button (these are as accurate as possible)

Products showing PRE ORDER are items we have coming back in to stock and the dates are on the product pages. When you buy a pre order item it is reserved and when it arrives with us we ship it on to you please allow 3 working days after date shown for delivery.

We also ship to NI, ROI and the Channel islands also Mainland Europe.

For more information, please visit our dedicated Delivery Information page.

Easy Returns

All items listed as in stock can be returned or exchanged easily. The item must be in the original packaging and in New Condition and unused! You have 14 days from the date the item was received. We can arrange the return for you.

Please advise of the order No, address and contact details in the email sent to logistics@officechairsuk.co.uk.

For more information, please visit our dedicated Returns, Exchange & Refunds page.

Features & Innovations

specification details for the Humanscale world chair