ALLENSTEINER logotype
Split hero image: on the left, a man sits in a black ALLENSTEINER chair playing a game on three screens at sunset; on the right, a woman in white sits in a white ALLENSTEINER chair working on her laptop in a bright office above the city

Allensteiner

Allensteiner Comfort

The Advanced Ergonomic Chair System — built for every body, sensing everything around you.

This is not just a chair. It is a strong, kind place to sit — made for people up to 7 feet tall and 600 pounds, able to lean back to almost lying flat, and wise enough to watch your heart and your air while you work and play.

Discover the chair Talk to us
7 ftTall — welcome
600 lbStrong — with ease
170°Recline — almost flat
6+Built-in sensors

Scroll — the story draws itself

The Design

Beauty you can see. Strength you can feel.

A chair should greet you like a good room does — calm, clean, and sure of itself.

Look at the line of this chair. It flows from the headrest to the base in one smooth, bold curve, like the spine it is made to protect. The frame is polished chrome. It shines like the frame of a fine car. The leather is rich and soft, with neat, even stitches. Nothing is loud. Nothing is weak. Every part has a job, and every part does it well.

Many chairs look fine in a photo and feel frail in real life. ALLENSTEINER is the other way round. The closer you look, the better it gets. The back carries the ALLENSTEINER name in bright metal. The arms are wide and sure. The seat is deep and kind. This is design that does not ask for your trust — it earns it, one detail at a time.

And as you scroll, watch what this page does. The chair begins as a simple line — a drawing, a promise — and fills with colour until it stands in front of you, full and real. That is how we build, too: first the true line, then the full life.

  • One flowing line — the frame follows the curve of your back.
  • Premium leather — soft to the touch, tough for daily use.
  • Polished chrome — a bright, strong frame that lifts any room.
Line drawing — contour of the black ALLENSTEINER chair from the side The black ALLENSTEINER chair from the side — premium black leather, polished chrome frame and five-star base, in a luxury room at sunset
Obsidian Black — Side

Keep scrolling — the contour fills with colour and becomes the chair.

A woman architect in a cream suit sits in a white ALLENSTEINER chair, seen from behind, drawing plans at a marble desk with palm trees and a resort outside the window

At Work — The Architect

From the back, the frame reads like a signature. She draws. The chair holds her line.

Built For Every Body

Up to 7 feet tall. Up to 600 pounds. Fully welcome.

For too long, big and tall people have been told to squeeze in, sit small, and be glad for less. We built the chair that ends that story.

Most chairs are made for one narrow idea of a body. If you are taller, broader or heavier than that idea, the chair tells you — with a creak, a wobble, a seat that feels too small and a back that stops too soon. That is not a flaw in you. That is a flaw in the chair.

ALLENSTEINER starts from a simple, proud truth: every body deserves a great chair. So we built one with a reinforced ergonomic frame, a wide and deep seat, a tall back with a full headrest, and a polished chrome five-star base that stays calm and steady under real weight. Up to seven feet of height. Up to six hundred pounds of strength. No creak. No wobble. No apology.

When a chair truly fits you, something quiet changes. Your shoulders drop. Your back rests. Your mind is free to do its best work. That is not luxury. That is respect — and it should be normal.

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Made for heights up to
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Weight it holds with ease
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Chrome caster base
Line drawing — contour of the reinforced frame on the back of the black ALLENSTEINER chair The back of the black ALLENSTEINER chair — the reinforced chrome ergonomic frame with the ALLENSTEINER name, wide arms and five-star base
The Frame — From Behind

The X-shaped frame is the backbone of the chair — drawn first, built to last.

A distinguished man in a dark suit sits in a black ALLENSTEINER chair at a marble desk, reading market charts with the New York skyline and the Empire State Building behind him

At Work — Finance, New York

Big decisions need a steady seat. He reads the market. The chair holds its ground.

Recline — 0° to 170°

Sit tall. Lean back. Almost lie down.

One chair for the whole day: sharp for work, soft for thought, flat for rest.

Your day is not one shape, so your chair should not be one shape either. In the morning you sit tall and get things done. At noon you lean back and think. In the evening you want to rest — truly rest — without leaving the room.

The ALLENSTEINER recline moves with you through all of it. It starts upright and open, ready for work. It eases back, step by step, and each step locks with a smooth, sure click. And it keeps going — past where most chairs stop — all the way to 170 degrees, almost lying flat. Legs up. Back open. Breath slow. A short rest like this can feel like a small reset for the whole body.

The move is quiet and smooth. There is no lurch, no drop, no fight with a stiff lever. It feels the way it should feel: easy, safe, and fully yours.

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Top recline — almost flat
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Moods — work, think, rest
ALLENSTEINER chair upright, ready for focused workUprightWork & focus
ALLENSTEINER chair half reclined, made for long talks and deep thoughtHalf wayThink & talk
ALLENSTEINER chair fully reclined to 170 degrees, almost lying flat170°Rest & recharge
Line drawing — contour of the black ALLENSTEINER chair fully reclined The black ALLENSTEINER chair fully reclined to almost lying flat, in a luxury gaming room at sunset
Fully Reclined — 170°

Most chairs stop early. This one goes almost all the way.

A young man with headphones sits in a black ALLENSTEINER chair holding a game controller, facing three glowing screens in a purple neon gaming room

At Play — The Gamer

Hours in the game. Still fresh at the end of it. That is what a real recline does.

Built-In Health Sensors

The chair that senses you.

You sit. The chair quietly keeps an eye on the things that matter.

Inside this chair live small, smart sensors. They do their work in silence, while you do yours. A heart rate sensor follows the beat of your heart, beat by beat, as you sit. A blood pressure sensor tracks your blood pressure in real time. Sensors in the seat and back feel your posture and pressure, so the chair knows how you sit — not just that you sit.

Why does this matter? Because your body talks to you all day, but it talks in a whisper. A heart that races when you feel calm. Pressure that climbs while the hours slide by. Posture that slowly slides into a slump. ALLENSTEINER helps you hear that whisper — in clear numbers, on a calm screen, in the app you will meet in the next section.

No straps. No wires on your skin. No fuss at all. You just sit the way you always sit — and the chair takes care of the rest. It is care, built into the place where you spend your day.

  • Heart rate sensor — tracks your heart beat (BPM) while you sit.
  • Blood pressure sensor — tracks your blood pressure in real time.
  • Posture & pressure sensing — feels how you sit, and helps you sit better.
Line drawing — contour of the ALLENSTEINER sensor guide for the black chair The ALLENSTEINER sensor guide for the black chair — heart rate sensor, blood pressure sensor, CO2 and CO air sensors, humidity sensor, dust particle sensor, reinforced ergonomic frame and premium recline mechanism, rated up to 7 feet tall and 600 lb
The Sensor Map — Black

Every dot on this map is a sensor at work — most of them hidden, all of them kind.

A doctor in a white coat sits in a white ALLENSTEINER chair at a marble desk in a bright, calm clinic, looking at patient images on her screen

At Work — The Doctor

She cares for people all day. At her desk, the chair cares for her.

The Allensteiner App

Every number, in your hand.

A chair this smart needs a screen this simple. The ALLENSTEINER app turns all those quiet sensors into clear, kind numbers you can read at a glance.

Open the app, and your chair says hello. Here is your heart rate, right now. Here is your blood pressure. Here is how you sit, and how far back you lean. Turn the page, and here is your air — how fresh it is, how clean it is, and what to do if it needs help. Turn once more, and here is your week: your focus, your rest, your small wins, all in one calm view.

There are no hard words in this app. No charts you need a degree to read. Just big numbers, soft colours and plain, friendly notes — made so a child could read it and a busy mind can trust it. It is the chair's voice, and it speaks in a way that helps, never in a way that nags.

Today — You

Your Air

Your Week

And if a number ever needs your care — air that grows stale, a heart that will not slow down — the app says so in plain words, early and calmly, so you can act while the step is still small. That is the heart of ALLENSTEINER: strong where you sit, gentle in how it speaks.

A woman in a white blazer sits in a white ALLENSTEINER chair at a round marble table, smiling during a video call, with fruit, greens and sunlight around her

At Home — Wellness

Bright food, bright light, bright air. She feels it. Her chair can prove it.

Air Sensors

The air around you, watched over.

You cannot see the air. But your body feels it — and now, your chair can read it.

Think of the last long meeting in a closed room. Heads grew heavy. Eyes grew tired. Words grew slow. Very often, that was not the work. That was the air. When we breathe in a closed room, carbon dioxide — CO₂ — slowly builds up, and our minds grow dull with it. You cannot fix what you cannot see. So the chair watches it for you, all day, in real time.

It also stands guard. A carbon monoxide — CO — sensor keeps watch for a gas you cannot see or smell at all, and lets you know if it ever appears. A humidity sensor tracks the water in the air, so the room stays kind to your skin, your eyes and your breath. And a dust particle sensor counts the tiny specks — PM — that float where you work and play.

Four quiet guards. One clear screen in the app. Good air is not luck. From now on, it is a number you can see — and a room you can fix.

  • CO₂ sensor — watches carbon dioxide, so your mind stays clear.
  • CO sensor — stands guard for carbon monoxide, for added safety.
  • Humidity sensor — tracks the air's moisture, for comfort all day.
  • Dust particle (PM) sensor — counts the specks in your air, so you can keep it clean.
Line drawing — contour of the ALLENSTEINER sensor guide for the white chair The ALLENSTEINER sensor guide for the white chair — CO2 air sensor, CO air sensor, humidity sensor, dust particle sensor, heart rate and blood pressure sensors, rated up to 7 feet tall and 600 lb
The Sensor Map — White

The white chair carries the same full set of senses.

A woman in a black suit sits in a black ALLENSTEINER chair at a marble desk with two data screens, above a sunset view of a round tech campus

At Work — Finance, Silicon Valley

Clear air, clear numbers, clear mind. Deep work loves all three.

The Engineering

Engineering you cannot see.

Turn the chair over. That is where the truth of a chair lives.

Under the soft leather sits a world of strong, exact parts. A premium recline mechanism, built of thick, machined metal, moves the chair through its wide arc — and locks it, firm and sure, at the angle you choose. The tilt tension dial lets you set how the chair gives when you lean. Every bolt is placed with care. Every joint is made to be used ten thousand times and feel the same on the ten-thousand-and-first.

The frame above it is reinforced and ergonomic — shaped to hold your spine in its natural curve and built to carry up to 600 pounds without strain. Below, a polished chrome five-star caster base spreads the load wide, so the chair stands calm on any floor, and the smooth casters roll in near silence.

We chose top materials for a simple reason: a chair you trust with your body and your health should be built to last for years, not seasons. Cheap parts grow loose. Loose parts grow loud. Loud parts break trust. So we built the quiet kind — the kind you stop noticing, because it never gives you a reason to.

  • Premium recline mechanism — smooth, precise, with multi-angle lock.
  • Reinforced ergonomic frame — posture-perfecting strength, up to 600 lb.
  • Chrome 5-star caster base — premium, stable, smooth-rolling, quiet.
Line drawing — contour of the underside of the black ALLENSTEINER chair, showing the recline mechanism The underside of the black ALLENSTEINER chair — the premium recline mechanism, tension dial and polished chrome five-star caster base, seen from below
Underneath — The Mechanism

Most brands hide this view. We lead with it.

A man in jeans and boots sits in a white ALLENSTEINER chair at a wooden desk, reading land plans with horses and green hills outside the window

At Work — The Ranch

Land, horses, hard days. His desk chair is built the same way he is — to last.

Colourway One

Obsidian Black

Black leather. Bright chrome. A chair that walks into a room the way a leader does — quiet, and at once in charge.

Obsidian Black is the colour of deep focus. In a boardroom, it speaks of weight and trust. In a game room at night, it disappears into the dark and lets the screens shine — while the chrome frame catches the light like a blade's edge. The leather is rich and matte, the stitching neat, the name on the backrest set in bright metal for all to read.

Scroll and watch the three views draw themselves, then fill with life: the side, the back, the lean. Same strength. Same senses. Dressed for the dark side of the day.

Line drawing — contour of the black ALLENSTEINER chair, side view Black ALLENSTEINER chair, side view, in a sunset room above the water
Side
Line drawing — contour of the black ALLENSTEINER chair, back view Black ALLENSTEINER chair, back view, showing the chrome frame and the ALLENSTEINER name
Back
Line drawing — contour of the black ALLENSTEINER chair, half reclined Black ALLENSTEINER chair, half reclined, in a luxury room at dusk
Half Reclined
A woman executive in a black blouse sits in a black ALLENSTEINER chair at a marble desk, typing at her computer with a pink sunset skyline over the water behind her

At Work — The Executive, Miami

Sunset over the bay. Work still sharp. Black on black, and all class.

Colourway Two

Ivory White

Soft white leather. The same bright chrome. A chair that brings light into the room — and calm into the day.

Ivory White is the colour of clear mornings. It suits bright offices and calm clinics, light studios and quiet libraries. It makes a room feel open and a mind feel fresh. And it asks for no trade at all: under the soft white leather sits the same reinforced frame, the same mechanism, the same full set of sensors as its black twin.

Two colours. One standard. Choose the one that feels like you — the chair will do the rest.

Line drawing — contour of the white ALLENSTEINER chair, side view White ALLENSTEINER chair, side view, in a bright office above the city
Side
Line drawing — contour of the white ALLENSTEINER chair, back view White ALLENSTEINER chair, back view, showing the chrome frame and the ALLENSTEINER name
Back
Line drawing — contour of the white ALLENSTEINER chair, half reclined White ALLENSTEINER chair, half reclined, in a bright office at sunset
Half Reclined
A smiling scholar with grey hair and glasses sits in a white ALLENSTEINER chair at a wooden desk in a warm library, reading a paper

At Study — The Scholar

A life of books, held by a chair built for long, deep reads.

Why It Matters

A better chair. A better day.

You spend years of your life in a chair. Those years should give something back.

Add it up and the truth is plain: the chair is where modern life happens. Work happens there. Ideas happen there. Games, calls, plans and dreams happen there. If the chair is wrong, the day pays for it — in a sore back, a tired mind, a short temper and a long night.

So we built the chair that pays you back. It holds your spine in its true curve. It spreads your weight with care. It leans back when you need to breathe, lies near flat when you need to rest, and keeps a kind eye on your heart and your air while it does all of that. Small comforts, added up over years, become a different life.

Here is what that can look like, in plain words — the six gifts written on the chair itself.

Line drawing — contour of the underside of the white ALLENSTEINER chair The underside of the white ALLENSTEINER chair — premium recline mechanism and chrome five-star base on a white background
Underneath — Ivory White

Built from top materials — so the good days keep coming, for years.

Better Posture

The frame follows the natural curve of your spine, so sitting tall feels easy — not like work.

Improved Circulation

A deep, kind seat and a true recline help your blood flow freely, even on the longest days.

Higher Cognitive Performance

Fresh air, a calm heart and a straight back add up to a clear mind — and clear minds do great work.

Lower Stress

When your body is held well, it lets go of strain. Shoulders drop. Breath slows. The day feels lighter.

Better Sleep

Real rest breaks in the day — even a short lie-back at 170° — help you reach the night calm, not wired.

Greater Productivity

Comfort is not the enemy of work. It is the fuel of it. Sit well, and the hours give you more.

Good questions, plain answers

How much weight can the chair hold?

Up to 600 pounds. The reinforced ergonomic frame and polished chrome five-star base are made to stay strong and steady, day after day, year after year.

How tall a person can use it?

Up to 7 feet tall. The tall back, deep seat and full headrest support your whole body, from your head to your legs.

How far does it recline?

From upright to 170 degrees — almost lying flat. And it locks at many angles in between, so it always fits the way you want to sit, work, play or rest.

What does the chair measure?

Its built-in sensors track your heart rate and your blood pressure, and they watch the air around you: carbon dioxide (CO₂), carbon monoxide (CO), humidity and dust particles (PM).

How do I see my readings?

Open the ALLENSTEINER app on your phone. It shows your heart, your blood pressure, your posture and recline, your air, and your week — all in clear, simple screens.

What is it made of?

Top materials only: premium leather, a reinforced ergonomic frame, a premium multi-angle recline mechanism and a polished chrome five-star caster base. It is built to last for years, not seasons.

A builder in a vest sits in a white ALLENSTEINER chair at a marble desk, smiling over building plans with a model and a crane on his screen

At Work — The Builder

He builds things that must stand for decades. He knows a well-built chair when he sits in one.

Contact Us

Write to us. We read every word.

Do you have a question about the chair? About the app? About a chair for your office, your studio, your clinic or your team? Write to us. A real person on our team reads every verified message — and we are glad to help.

Here is how it works, in plain steps. Fill in the form. We send one short email to check that your address is truly yours. Click the button in that email — and your message reaches us at once. This small step keeps spam away and keeps real letters, like yours, safe.

Every body deserves a great chair. If that line made you nod, we would love to hear from you.

We will email you one short verification message first. Your details stay private — we never sell them, and we never send spam.

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