Herman Miller Aeron Office Chair Size B (Medium) Executive Graphite | In Stock, Fast Delivery

The Herman Miller Aeron Size B (Medium) Executive in Graphite combines the world’s most iconic ergonomic office chair with a premium Executive finish, featuring a polished aluminium base and frame for a more refined look. This full specification model includes PostureFit SL, forward tilt, tilt limiter and fully adjustable arms, with fast UK delivery from Wellworking — designed to help you sit your best through long working days.

Size B is the medium Aeron and the most popular choice, recommended for users approximately 5'4" / 167 cm to 6'1" / 183 cm, offering a balanced fit for a wide range of body types.

The Aeron’s breathable Pellicle mesh seat and back promotes airflow and provides zoned support, while PostureFit SL supports both the sacrum and lumbar spine to encourage healthier posture and lasting comfort.

Key Benefits

• Executive Finish (Polished Aluminium): Premium polished base and frame for a more distinctive, high-end appearance.

• Full Spec Aeron (In Stock): Includes PostureFit SL, forward tilt, tilt limiter and fully adjustable arms.

• Size B (Medium) Best-Seller: Recommended for users approx. 5'4" / 167 cm to 6'1" / 183 cm for a versatile fit.

• Breathable Pellicle Mesh: Keeps you cooler by allowing air, heat and moisture to pass through the seat and back.

• PostureFit SL Support: Adjustable sacral and lumbar support designed to reduce fatigue and support posture.

• Fast UK Delivery: Delivered in 3–5 working days from Wellworking (UK stock).

• 12-Year Herman Miller Warranty: Manufacturer-backed peace of mind when purchased from an authorised retailer.

Order today for fast delivery and enjoy the Aeron benchmark in ergonomic comfort with an Executive finish.

What’s Included

• Herman Miller Aeron Chair Size B (Medium) – Executive Graphite

• Polished aluminium base and frame

• PostureFit SL support system

• Tilt limiter and forward tilt

• Fully adjustable arms (height, width, depth and pivot)

• Choice of vinyl or leather armpads

• Choice of carpet or multi-floor castors

• Delivered fully assembled (unless requested otherwise)

Best For

• 6–10 hour workdays

• Home working and professional offices

• Users who want a premium Executive finish

• Breathable mesh seating and posture support

• Customers looking for an iconic chair with a more distinctive look

Wellworking Says…

“The Aeron Executive in Graphite is a superb choice if you want iconic Aeron comfort with a more premium finish. With the polished aluminium base and fast delivery, it’s perfect for both home offices and professional workspaces.”

Herman Miller Aeron Chair FAQs

Is Size B the right size for me?

Size B is the medium Aeron and the most popular choice, recommended for users approximately 5'4" / 167 cm to 6'1" / 183 cm. It offers a balanced fit for a wide range of body types.

What is the Aeron Executive finish?

The Aeron Executive features a polished aluminium base and frame, giving the chair a more premium look compared to the standard graphite base.

Is the Aeron chair good for back support?

Aeron’s Pellicle mesh provides breathable comfort, while its multi-zone tension system reduces pressure and delivers targeted support. With PostureFit SL and extensive ergonomic adjustments, Aeron is designed to support posture throughout the working day.

How do you adjust the seat height?

To raise the seat: While not seated, lift the paddle-shaped lever on the right side upward.
To lower the seat: While seated, lift the same lever upward.

Adjust so your feet rest flat on the floor or on a footrest.

How do you adjust the recline tension?

Increase tension: Turn the knob on the right side forward (clockwise).
Decrease tension: Turn the knob backward (counterclockwise).

Adjust to suit your preference.

What warranty does the Aeron chair include?

Herman Miller provides a 12-year warranty covering parts and labour when purchased from an authorised retailer such as Wellworking.

Does the chair require assembly?

The Aeron arrives fully assembled and ready to use, unless knock-down delivery is specifically requested.

What colours are available?

Aeron is available in Graphite (dark grey), Onyx (black), Carbon (mid grey) and Mineral (light grey).