Where the name went

The old Amazon listing still says “Eurotech Seating iOO Chair”. The new ones drop Eurotech from the name entirely. Search for the Ergohuman XTREME and the same chair comes up under fresh part numbers. ME2ERG-XTRM is the high back with the headrest in the box. The mid back, sold bare, is ME3ERGLO-XTRM, and both sit in the Ergohuman store under Raynor, Eurotech’s parent.

Is the XTREME really the same chair? Amazon’s spec table answers that. The XTREME’s entry repeats the iOO sheet line for line. A 275 lb capacity, a 69 lb chair, 15.5 in of seat depth, the same 26 by 26 in footprint.

This matters when you search. The reviews and spec sheets are split across two names now, so any single listing looks thinner than the chair’s history deserves. The XTREME listings carry three ratings between them, and the old iOO listings hold 32.

BTOD went further than anyone. Its old iOO product page, the address this review cited for months, now redirects straight to a page titled Ergohuman XTREME Mesh Ergonomic Chair with Headrest, and the iOO URL is gone from its catalogue.

The name on the listing is worth $240. The old black iOO was in stock at $938.52 on August 15. The XTREME high back, same chair with the headrest included, was $699 at Amazon and at OfficeChairsUSA the same afternoon.

One bolt holds the back on

The iOO ships flat, in ten part types and twenty pieces, and the only tool you need is the Allen key that comes with it. That is a good, honest kit. Two arm bolts, four washers, five castors, a gas cylinder, a base.

And one back bolt. A single M8 by 15 mm, quantity one, holding the backrest to the seat.

The Ergohuman, which Eurotech’s own dealers describe as sharing this chair’s design, lists two back bolts on its assembly sheet. The iOO lists one. I have no test data saying that is dangerous, and neither does anyone else. In 2016, though, the US Consumer Product Safety Commission recalled a different chair imported by the same company, and the reason given was that the seat could detach.

Check the torque on that bolt when you build it, and check it again after a month. It costs you thirty seconds.

What the iOO actually is

A mesh-backed task chair with a synchro-tilt mechanism, sold for years by Eurotech Seating. BTOD, which sold it as EUR-iOO-MESH and now lists it as the XTREME, quotes a weight capacity of 275 lb, matching Eurotech’s own warranty, and a chair weight of 69 lb.

The seat measures 19.7 in wide with 15.5 to 17 in of depth travel. The back runs 23.2 to 27.72 in tall. On the floor it takes up 26 by 26 in at 40.8 to 46 in high.

The adjustment list is long. Synchro-tilt with a seat slider, tilt tension, tilt lock, a single lever handling height and seat depth and tilt lock together, lumbar tension, and a six-way lumbar panel. Warranty runs lifetime on components with upholstery excluded, and BTOD notes foam and upholstery are covered for five years.

What the warranty actually covers

Eurotech publishes its warranty on its own site, and it is worth reading there before you trust a dealer’s summary of it:

“Eurotech’s warranty is limited to the normal use of the product in a forty hour work week and a 275 lb. weight limit unless otherwise noted.”

Lifetime on components. Five years on upholstery and foam. Chairs sold for round-the-clock use run shorter, you need proof of purchase, and the document is dated October 2017.

Dealer pages paraphrase all of that, and the paraphrases drift. One reproduces the sentence with 250 lb in place of 275, sitting under a heading for a different brand entirely, on a page that tells you in its own words to check the manufacturer instead. Another adds an armrest-pad exclusion Eurotech never states. A third prints a 300 lb capacity on its XTREME page that appears nowhere in Eurotech’s own document. Read it where Eurotech publishes it.

Eight listings, one chair

This is the whole market for this chair on August 15, in one table.

The no-headrest listing was always the honest one of the old three. Somebody put the exclusion in capital letters in the product title, which tells you the returns were piling up. The new listings settle it in the open. The high back includes the headrest and the titles at all three sellers say so.

Prices and stock read by hand on 15 August 2026.

I would still read the title before ordering. And if you land on the $938.52 black iOO page, know that the chair underneath is the $699 one.

What it looks like coming out of the box

I bought an iOO in July 2020 and photographed it coming out of the carton. The box is labelled iOO-Blanc, fauteuil resille multifonction dossier moyen, the French description of the white-framed mid-back mesh version. The pictures run from 15:51 to 17:23 that afternoon. Ninety minutes, sealed box to a chair at the desk, and a fair slice of that went on taking the photographs.

It arrives in parts. The five-star base, the castors, the gas cylinder, both armrests, the seat and the back are packed separately, and the headrest comes bagged with its own fixings. The cylinder is pressed into the base by hand.

What the low reviews say

Four critical reviews sit on the black listing. Three of them are about getting something other than what the page showed.

Who it suits

What I would look at instead

If the mesh back is what drew you here, the same question came up on the Eurotech Vera page, which went through the same rebrand into the Ergohuman line and ends with chairs you can actually buy today. The reasoning there applies here.

Questions

Read how I check numbers.