Adjust the chair to your workday.
EC200 Ergonomic Office Chair
Fine-tune lumbar support, seat depth and armrests for your desk setup.
3–5 business days estimated delivery · Contiguous US
30-day returns · Change-of-mind return shipping is paid by you.
What’s included, delivery & returns
- Included with Black
- Height-adjustable, sliding and rotating armrests. All three movements are included at the price shown—no separate purchase.
- Delivery
- Estimated delivery: 3–5 business days for in-stock Black chairs in the contiguous US. Free shipping to eligible mainland US addresses. Location restrictions and any applicable charges are confirmed at checkout. Shipping details (opens in a new tab)
- 30-day returns
- Request a return within 30 days of delivery. Keep the packaging and all parts. For change-of-mind returns, you pay return shipping; ProtoArc provides a prepaid label for verified defects or incorrect items. Get return authorization before sending the chair back. Return details (opens in a new tab)
Made to adjust
Make the chair fit your day.
Choose a control to see how it works.
- Up & down
- 2.36″
- Forward & back
- 0.8″
Support your lower back.
Move the lumbar support up or down, then adjust how firmly it meets your back.
Good to know
Start with light support and increase gradually. Comfort is personal.
Find your fit
Room for your workday.
Sized for your setup.
Compare a few key measurements with a chair you already find comfortable.
- Recommended height
- 5′4″–6′0″
- Recommended weight
- 90–220 lb
- Seat height
- 17.9″–21.8″
- Seat depth
- 20″ 1.97″ adjustment travel
A dimension comparison, not a fit guarantee.
Everyday spaces
At home with EC200.
Real setups. Specific experiences. In their own context.
In the press
A closer look. An outside perspective.
Hands-on review“A serious ergonomic solution in everyday working life.”
Tested through daily sitting sessions of four to eight hours.
Calixto Pape · Feb 24, 2026 · Translated from German
Adjustment range & value
The review highlights adjustable lumbar support, seat-depth adjustment and a versatile headrest at an approachable price.
Comfort & lumbar support
The reviewer singled out the adjustable lumbar support and reported that its mechanism worked flawlessly during testing.
4 more publicationsReviews & editor features
Before you check out
A few things worth knowing.
Delivery, returns and the details that help you decide.
What does the 30-day return window mean?
You have 30 days from delivery to request a return. Keep the original packaging and all parts, and contact support for a return authorization before sending it back. Read the return policy ↗
Who pays for return shipping?
ProtoArc provides a prepaid return label for a defective or incorrectly shipped item. For a change-of-mind return, return shipping is the customer’s responsibility. Contact support@protoarc.com with your order details before returning the chair.
What is covered by the five-year warranty?
EC200 includes a five-year limited warranty. Coverage depends on the part and the policy terms; keep your order information for any claim. Read the warranty policy ↗
Are all three armrest adjustments included?
Yes. Both Black and Gray EC200 include height adjustment, forward-and-back sliding and inward-or-outward rotation at the price shown. No separate armrest purchase is needed. These are the three included movements—not sideways travel.
How do I confirm shipping and delivery?
In-stock Black chairs are estimated to arrive in 3–5 business days in the contiguous US. Free shipping applies to eligible continental US orders. Enter your address at checkout to confirm delivery availability and the final total. Shipping policy ↗
Does EC200 need assembly?
Yes. Follow the included step-by-step instructions. ProtoArc estimates about 20 minutes, with no extra tools needed; your assembly time may vary.
Customer reviews
Experiences with the EC200, in their own words.
Your next workday
Make it your EC200.
Black · Ergonomic office chair
Free US mainland shipping · 30-day return window5-year limited warranty
3–5 business days estimated delivery · Contiguous US
30-day returns · Change-of-mind return shipping is paid by you.
What’s included, delivery & returns
- Included with Black
- Height-adjustable, sliding and rotating armrests. All three movements are included at the price shown—no separate purchase.
- Delivery
- Estimated delivery: 3–5 business days for in-stock Black chairs in the contiguous US. Free shipping to eligible mainland US addresses. Location restrictions and any applicable charges are confirmed at checkout. Shipping details (opens in a new tab)
- 30-day returns
- Request a return within 30 days of delivery. Keep the packaging and all parts. For change-of-mind returns, you pay return shipping; ProtoArc provides a prepaid label for verified defects or incorrect items. Get return authorization before sending the chair back. Return details (opens in a new tab)