Itoki · Office Chairs

Itoki ACT2

ITOKI · Released June 2025

Active sitting and affordable ergonomics.

¥132,240

≈ $830

  • 3 / 2 / 1-year warranty
Check price at Itoki

Summary

ITOKI's 2025 update of its Act task chair, with a foam-free breathable seat and new head and lumbar supports.

Best for

  • People who want a seat without urethane foam (Respitec two-layer seat).
  • Those who want a headrest that moves up, down and forward.
  • Users who want separate upper and lower back pads for the pelvis and lumbar area.
  • People who want firm lower back and pelvis support that still gives when they stretch the upper body, in one showroom user's view.
  • People who care about fine armrest and headrest adjustment, in one showroom user's view.

Good to check first

  • ITOKI's announcement lists no weight rating, so check the spec sheet or ask the seller.
  • It is sold mainly in Japan, so check shipping and support before ordering from abroad.

The trade-off

A new foam-free seat design, with few English-language specs published so far.

Value check

Sold mainly in Japan; the price shown is converted from yen.

Price
¥132,240
Warranty
3 / 2 / 1 years

What ITOKI highlights

  • Respitec seat

    The seat uses two breathable layers, a polyester nonwoven fabric over 3D mesh fiber, instead of urethane foam. ITOKI says it pairs comfort with environmental compatibility.

  • Adjustable head support

    The headrest moves 60 mm up and down and 33 mm forward and back. ITOKI says its shape follows the curve of the neck.

  • Pelvis and lumbar support

    A flexible frame carries upper and lower pads for the lower back and sacrum. ITOKI says the pads help keep your posture steady.

  • 4D arms and seat depth

    The arms adjust through a 4D link, and the seat slides for depth. The back pivots on a frameless-sided design.

As described by ITOKI on its official pages; not a Chairpedia assessment.

What users say

Most-mentioned topics

  1. 1. Back support9 mentions · 56% positive
  2. 2. Seat8 mentions · 75% positive
  3. 3. Armrests7 mentions · 57% positive
  4. 4. Design6 mentions · 83% positive
  5. 5. Recline and tilt6 mentions · 67% positive
  6. 6. Adjustability5 mentions · 100% positive
  7. 7. Comfort5 mentions · 100% positive
More details →

Who it suits, who it doesn't

  • Suits Users around average height: One video reviewer around that height achieved full flat-foot floor contact and found the seat size natural.
  • Suits Tall users: A reviewer mentioned the adjustable seat accommodates tall users.
  • Suits People who twist and stretch: The flexible backrest tracks torso movement during turns and stretches, reducing strain in shoulders and back according to two reviewers.

Where users disagree

  • Lumbar support feel

    One side: Five users find the lumbar and pelvis support well-designed and helpful for keeping the lower back in position.

    Other side: One video reviewer describes the lumbar support as an unyielding flat plate.

  • Armrest adjustment range

    One side: One user praises the wide armrest adjustment range.

    Other side: One user wishes the armrests had more range of motion.

Users who switched

  • From Herman Miller → To Itoki ACT2: One user prefers the ACT2 for its Japanese design philosophy and finds it more supportive for their body type.

Detailed topics

  • Armrests shift position easily and lack a locking mechanism · two of seven discussions
    What users did: no fix reported
  • The lever for seat depth adjustment is difficult to move · one of seven discussions
    What users did: no fix reported
  • Buttock fatigue after roughly two hours of continuous sitting · one of seven discussions
    What users did: user shifted position or stood up

Topic notes

  • Back support: Users praise the lumbar and pelvis support, saying it helps keep the lower back in position during extended sessions; one video reviewer found the lumbar felt like a flat, unyielding plate.
  • Seat: The firm, multi-layer seat resists sagging and promotes posture according to five reviewers, while two note the firmness may not suit everyone and can cause fatigue after two hours of unbroken sitting.
  • Armrests: Two reviewers appreciate the wide range of four-directional armrest adjustment; two others complain the armrests swivel too freely without locking mechanisms and do not hold position reliably.
  • Design: Two users highlight Japanese design quality and attention to detail; one notes the chair feels natural to sit in and better sized than large imported chairs.
  • Recline and tilt: Three reviewers describe the recline and tilt as smooth and natural, though one cautions the upright backrest leans back more than on other chairs.
  • Adjustability: Four users mention high adjustability and fine-tuning options for headrest, seat depth, and angles, though one video reviewer found the seat-depth lever stiff and hard to slide.
  • Comfort: Three users report the ACT2 is comfortable for all-day or long work sessions; two say comfort becomes more noticeable over time rather than immediately.

After long-term use

Not enough long-term user data yet.

Before you buy

Fit (official)

  • Overall size W680 × D680 × H995–1325 mm.
  • 3 frame colors and 47 upholstery colors.

Sources: ITOKI news release, Act2 ↗ (checked Oct 11, 2026)

Check price at Itoki

Specs

Size and fit
Seat height
450–565 mm (17.7–22.2 in)
Adjustments
Recline
20°
Arms
Adjustable arms (4D link arms): height, depth, rotation angle
Lumbar support
Pelvis & lumbar support: 60 mm, 7 steps
Headrest
Adjustable head support: 60 mm height, 30° front-back
Build and warranty
Warranty
Structure 3 years (mechanisms and moving parts 2 years, exterior and surface finish 1 year)
Chair weight
14.9 kg (32.8 lb)

About ITOKI

Founded
1890, in Osaka, Japan, by Kijuro Ito

Kijuro Ito founded the business in Osaka on December 1, 1890. In 2005 ITOKI's manufacturing and sales companies merged into one company under the ITOKI name.

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Questions

How much does the Itoki ACT2 cost?

It costs ¥132,240 including tax at the ITOKI (Japan), about $830 at a fixed exchange rate (checked Sep 2026).

Does the Itoki ACT2 have a headrest?

Yes. The official specifications list: Adjustable head support: 60 mm height, 30° front-back.

What do owners say about back pain with the Itoki ACT2?

Back pain comes up in 1 owner review summaries. These are owners' own reports, not medical findings.

Where can I buy the Itoki ACT2?

You can buy it from the ITOKI (Japan). Check the configuration, price and return terms before ordering.

Videos

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Features are compared from each brand's published specifications; check the details that matter to you. Some links are affiliate links.

Where to buy

Official ITOKI page in Japan. Confirm where to buy in your country before ordering. Some links are affiliate links; Chairpedia may earn a commission at no extra cost to you (disclosure).

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Specs and prices come from the brand sources listed under Specs and next to the price; User Insights link to their originals. Confirm the exact configuration, seller and price before buying. Editorial policy

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