About
ErgoSlice T-Bone FlexBack Reversible Ergonomic Back Cushion
One Cushion. Two Positions. Personalized Back Support.
Customizable lumbar, thoracic, and upper back comfort for Herman Miller Aeron Chairs and other compatible office chairs.
Transform your seating experience with the ErgoSlice T-Bone FlexBack, an innovative, reversible ergonomic back cushion designed to deliver personalized comfort and support throughout your workday.
Originally designed for the Herman Miller Aeron Chair, the T-Bone FlexBack features a versatile contoured design that can also be used with a variety of other office chairs.
Unlike conventional back cushions with a fixed support position, the T-Bone FlexBack can be reversed to customize where additional cushioning is concentrated.
Position the wider end down for enhanced lumbar and thoracic support, or reverse it with the wider end up for additional upper back, shoulder, and thoracic support.
Featuring 2" thick cushioning, coordinating black mesh fabric, and adjustable attachment straps, the T-Bone FlexBack offers a simple way to personalize your existing office chair without replacing it.
Two Positions. Your Choice of Support.
WIDER END DOWN | Lumbar + Thoracic Support
Position the 9" wide end toward the bottom of your chair for additional cushioning across the lower back and lumbar region.
This orientation is ideal for individuals seeking greater lower-back cushioning while maintaining support along the mid-back and thoracic region.
WIDER END UP | Upper Back + Shoulder Support
Reverse the cushion so the 9" wide end is positioned at the top to provide additional cushioning across the upper back and shoulder region.
This orientation is ideal for users who prefer broader cushioning higher along the backrest.
THORACIC SUPPORT IN EITHER POSITION
Regardless of orientation, the FlexBack provides cushioning along the thoracic region, allowing you to personalize your comfort by simply reversing the cushion.
Universal Versatility. Personalized Comfort.
Designed for the Herman Miller Aeron. Versatile Enough for Many Other Office Chairs.
The T-Bone FlexBack was originally designed to complement the distinctive backrest of the Herman Miller Aeron Chair, but its adaptable design makes it suitable for a variety of other office chairs.
Its adjustable attachment straps allow the cushion to be secured to compatible chair backrests, making it a practical comfort accessory for office workstations, home offices, and professional seating environments.
Chair Compatibility:
-
Herman Miller Aeron Chair — Sizes A, B, and C
-
Other ergonomic office chairs with compatible backrest dimensions
-
Task chairs with suitable backrests and strap attachment points
-
Home office chairs that accommodate the cushion's dimensions and adjustable straps
Compatibility with other chair models depends on backrest shape, dimensions, and available strap attachment points.
Key Features & Benefits
-
Innovative Reversible Design: Two positioning options allow you to emphasize lumbar or upper back cushioning.
-
Multi-Region Ergonomic Support: Provides cushioning along the lumbar, thoracic, and upper back regions.
-
Versatile Chair Compatibility: Designed for Herman Miller Aeron sizes A, B, and C, and suitable for many other office chairs.
-
Contoured T-Bone Shape: Measures 9" wide at one end and 6½" wide at the other to accommodate different support preferences.
-
2" Thick Cushioning: Adds a substantial layer of comfort between your back and the chair's backrest.
-
Coordinated Black Mesh Fabric: Made with the same mesh fabric as the ErgoSlice Seat Cushion.
-
Adjustable Attachment Straps: Secure the cushion and allow it to be repositioned or reversed.
-
Compatible with Existing Aeron Back Support: Can be used with or without the chair's original Herman Miller back support.
-
An Economical Comfort Upgrade: Enhance the comfort of your existing office chair without replacing it.
Make Your Office Chair Work Better for You
Even the most thoughtfully designed ergonomic office chair cannot provide the same comfort for every individual.
Body proportions, posture, workstation configuration, and personal comfort preferences all influence how a chair feels throughout the day.
The ErgoSlice T-Bone FlexBack provides an adaptable way to personalize your chair by adding cushioning where your back contacts the backrest.
Its distinctive shape and reversible design make it especially useful for individuals who want flexibility in where additional support is concentrated.
Whether you prefer more cushioning in the lumbar region or across your upper back and shoulders, the FlexBack lets you choose the configuration that feels best for you.
Simple Installation. Adjustable Positioning.
The T-Bone FlexBack attaches to compatible office chairs using adjustable straps.
-
Choose your preferred orientation — wider end up or down.
-
Position the cushion against your chair's backrest.
-
Secure the cushion using the adjustable attachment straps.
-
Adjust its position to achieve your preferred comfort and support.
For Herman Miller Aeron owners, the FlexBack can be used with or without the chair's existing back support.
For other office chairs, confirm that the backrest shape and attachment points accommodate the cushion and straps.
Complete Your Aeron Comfort Upgrade
Pair your T-Bone FlexBack with the matching ErgoSlice Seat Cushion for a coordinated ergonomic seating solution.
Both cushions feature matching black mesh fabric and provide additional cushioning in two important seating areas.
ErgoSlice T-Bone FlexBack: Reversible lumbar, thoracic, and upper back cushioning.
ErgoSlice Seat Cushion: Additional cushioning for the seat surface of your Herman Miller Aeron Chair.
Together, they provide a coordinated approach to customizing the comfort of your Aeron Chair while complementing its distinctive design.
Product Specifications
| Feature | Details |
|---|---|
| Brand | ErgoSlice |
| Model | T-Bone FlexBack |
| Part Number | ES-TB100 |
| Product Type | Reversible Ergonomic Back Cushion |
| Color | Black |
| Overall Height | 17" |
| Wide End Width | 9" |
| Narrow End Width | 6½" |
| Thickness | 2" |
| Primary Compatibility | Herman Miller Aeron Chair, Sizes A, B, and C |
| Additional Compatibility | Other office chairs with compatible backrests and strap attachment points |
| Orientation | Reversible — wider end up or down |
| Support Regions | Lumbar, thoracic, upper back, and shoulders |
| Fabric | Black mesh matching the ErgoSlice Seat Cushion |
| Attachment | Adjustable straps |
| Existing Aeron Back Support | Can be used with or without Herman Miller back support |
| Coordinating Accessory | ErgoSlice Seat Cushion |
Frequently Asked Questions
Does the ErgoSlice T-Bone FlexBack fit all Herman Miller Aeron Chair sizes?
Yes. The cushion is designed to fit Herman Miller Aeron Chair sizes A, B, and C.
Can I use the T-Bone FlexBack on other office chairs?
Yes. Although originally designed for the Herman Miller Aeron Chair, the T-Bone FlexBack may also be used with other ergonomic office chairs and task chairs that accommodate its dimensions and adjustable attachment straps.
What are the dimensions of the cushion?
The T-Bone FlexBack measures 17" high and 2" thick, with a contoured design measuring 9" wide at one end and 6½" wide at the other.
What is the benefit of the reversible design?
Positioning the wider end down emphasizes cushioning across the lumbar and lower-back region. Positioning the wider end up emphasizes upper back and shoulder cushioning. Both orientations provide support along the thoracic region.
Can I use the cushion with my Aeron's existing lumbar support?
Yes. The FlexBack can be used with or without your chair's existing Herman Miller back support.
How does the cushion attach to my office chair?
Adjustable straps secure the cushion to a compatible backrest, allowing you to position it according to your comfort preferences.
Does the FlexBack match the ErgoSlice Seat Cushion?
Yes. Both products feature coordinating black mesh fabric and can be used together to enhance the comfort of your Herman Miller Aeron Chair.
Upgrade Your Chair. Customize Your Comfort.
One Cushion. Two Positions. Personalized Back Support.
Experience the flexibility of reversible ergonomic cushioning with the ErgoSlice T-Bone FlexBack — designed for the Herman Miller Aeron Chair and versatile enough for many other compatible office chairs.
Whether you're upgrading your existing Aeron or enhancing the comfort of another office chair, the FlexBack offers an adaptable solution for personalized back cushioning.
At Ergo Works, we've specialized in ergonomic solutions since 1994, helping individuals and organizations find seating solutions that fit their needs.
The Right Fit Starts with You.
ErgoSlice is an independent aftermarket accessory brand. This product is not manufactured, sponsored, or endorsed by Herman Miller or MillerKnoll.
ErgoSlice T-Bone FlexBack Reversible Ergonomic Back Cushion
One Cushion. Two Positions. Personalized Back Support.
Customizable lumbar, thoracic, and upper back comfort for Herman Miller Aeron Chairs and other compatible office chairs.
Transform your seating experience with the ErgoSlice T-Bone FlexBack, an innovative, reversible ergonomic back cushion designed to deliver personalized comfort and support throughout your workday.
Originally designed for the Herman Miller Aeron Chair, the T-Bone FlexBack features a versatile contoured design that can also be used with a variety of other office chairs.
Unlike conventional back cushions with a fixed support position, the T-Bone FlexBack can be reversed to customize where additional cushioning is concentrated.
Position the wider end down for enhanced lumbar and thoracic support, or reverse it with the wider end up for additional upper back, shoulder, and thoracic support.
Featuring 2" thick cushioning, coordinating black mesh fabric, and adjustable attachment straps, the T-Bone FlexBack offers a simple way to personalize your existing office chair without replacing it.
Two Positions. Your Choice of Support.
WIDER END DOWN | Lumbar + Thoracic Support
Position the 9" wide end toward the bottom of your chair for additional cushioning across the lower back and lumbar region.
This orientation is ideal for individuals seeking greater lower-back cushioning while maintaining support along the mid-back and thoracic region.
WIDER END UP | Upper Back + Shoulder Support
Reverse the cushion so the 9" wide end is positioned at the top to provide additional cushioning across the upper back and shoulder region.
This orientation is ideal for users who prefer broader cushioning higher along the backrest.
THORACIC SUPPORT IN EITHER POSITION
Regardless of orientation, the FlexBack provides cushioning along the thoracic region, allowing you to personalize your comfort by simply reversing the cushion.
Universal Versatility. Personalized Comfort.
Designed for the Herman Miller Aeron. Versatile Enough for Many Other Office Chairs.
The T-Bone FlexBack was originally designed to complement the distinctive backrest of the Herman Miller Aeron Chair, but its adaptable design makes it suitable for a variety of other office chairs.
Its adjustable attachment straps allow the cushion to be secured to compatible chair backrests, making it a practical comfort accessory for office workstations, home offices, and professional seating environments.
Chair Compatibility:
-
Herman Miller Aeron Chair — Sizes A, B, and C
-
Other ergonomic office chairs with compatible backrest dimensions
-
Task chairs with suitable backrests and strap attachment points
-
Home office chairs that accommodate the cushion's dimensions and adjustable straps
Compatibility with other chair models depends on backrest shape, dimensions, and available strap attachment points.
Key Features & Benefits
-
Innovative Reversible Design: Two positioning options allow you to emphasize lumbar or upper back cushioning.
-
Multi-Region Ergonomic Support: Provides cushioning along the lumbar, thoracic, and upper back regions.
-
Versatile Chair Compatibility: Designed for Herman Miller Aeron sizes A, B, and C, and suitable for many other office chairs.
-
Contoured T-Bone Shape: Measures 9" wide at one end and 6½" wide at the other to accommodate different support preferences.
-
2" Thick Cushioning: Adds a substantial layer of comfort between your back and the chair's backrest.
-
Coordinated Black Mesh Fabric: Made with the same mesh fabric as the ErgoSlice Seat Cushion.
-
Adjustable Attachment Straps: Secure the cushion and allow it to be repositioned or reversed.
-
Compatible with Existing Aeron Back Support: Can be used with or without the chair's original Herman Miller back support.
-
An Economical Comfort Upgrade: Enhance the comfort of your existing office chair without replacing it.
Make Your Office Chair Work Better for You
Even the most thoughtfully designed ergonomic office chair cannot provide the same comfort for every individual.
Body proportions, posture, workstation configuration, and personal comfort preferences all influence how a chair feels throughout the day.
The ErgoSlice T-Bone FlexBack provides an adaptable way to personalize your chair by adding cushioning where your back contacts the backrest.
Its distinctive shape and reversible design make it especially useful for individuals who want flexibility in where additional support is concentrated.
Whether you prefer more cushioning in the lumbar region or across your upper back and shoulders, the FlexBack lets you choose the configuration that feels best for you.
Simple Installation. Adjustable Positioning.
The T-Bone FlexBack attaches to compatible office chairs using adjustable straps.
-
Choose your preferred orientation — wider end up or down.
-
Position the cushion against your chair's backrest.
-
Secure the cushion using the adjustable attachment straps.
-
Adjust its position to achieve your preferred comfort and support.
For Herman Miller Aeron owners, the FlexBack can be used with or without the chair's existing back support.
For other office chairs, confirm that the backrest shape and attachment points accommodate the cushion and straps.
Complete Your Aeron Comfort Upgrade
Pair your T-Bone FlexBack with the matching ErgoSlice Seat Cushion for a coordinated ergonomic seating solution.
Both cushions feature matching black mesh fabric and provide additional cushioning in two important seating areas.
ErgoSlice T-Bone FlexBack: Reversible lumbar, thoracic, and upper back cushioning.
ErgoSlice Seat Cushion: Additional cushioning for the seat surface of your Herman Miller Aeron Chair.
Together, they provide a coordinated approach to customizing the comfort of your Aeron Chair while complementing its distinctive design.
Product Specifications
| Feature | Details |
|---|---|
| Brand | ErgoSlice |
| Model | T-Bone FlexBack |
| Part Number | ES-TB100 |
| Product Type | Reversible Ergonomic Back Cushion |
| Color | Black |
| Overall Height | 17" |
| Wide End Width | 9" |
| Narrow End Width | 6½" |
| Thickness | 2" |
| Primary Compatibility | Herman Miller Aeron Chair, Sizes A, B, and C |
| Additional Compatibility | Other office chairs with compatible backrests and strap attachment points |
| Orientation | Reversible — wider end up or down |
| Support Regions | Lumbar, thoracic, upper back, and shoulders |
| Fabric | Black mesh matching the ErgoSlice Seat Cushion |
| Attachment | Adjustable straps |
| Existing Aeron Back Support | Can be used with or without Herman Miller back support |
| Coordinating Accessory | ErgoSlice Seat Cushion |
Frequently Asked Questions
Does the ErgoSlice T-Bone FlexBack fit all Herman Miller Aeron Chair sizes?
Yes. The cushion is designed to fit Herman Miller Aeron Chair sizes A, B, and C.
Can I use the T-Bone FlexBack on other office chairs?
Yes. Although originally designed for the Herman Miller Aeron Chair, the T-Bone FlexBack may also be used with other ergonomic office chairs and task chairs that accommodate its dimensions and adjustable attachment straps.
What are the dimensions of the cushion?
The T-Bone FlexBack measures 17" high and 2" thick, with a contoured design measuring 9" wide at one end and 6½" wide at the other.
What is the benefit of the reversible design?
Positioning the wider end down emphasizes cushioning across the lumbar and lower-back region. Positioning the wider end up emphasizes upper back and shoulder cushioning. Both orientations provide support along the thoracic region.
Can I use the cushion with my Aeron's existing lumbar support?
Yes. The FlexBack can be used with or without your chair's existing Herman Miller back support.
How does the cushion attach to my office chair?
Adjustable straps secure the cushion to a compatible backrest, allowing you to position it according to your comfort preferences.
Does the FlexBack match the ErgoSlice Seat Cushion?
Yes. Both products feature coordinating black mesh fabric and can be used together to enhance the comfort of your Herman Miller Aeron Chair.
Upgrade Your Chair. Customize Your Comfort.
One Cushion. Two Positions. Personalized Back Support.
Experience the flexibility of reversible ergonomic cushioning with the ErgoSlice T-Bone FlexBack — designed for the Herman Miller Aeron Chair and versatile enough for many other compatible office chairs.
Whether you're upgrading your existing Aeron or enhancing the comfort of another office chair, the FlexBack offers an adaptable solution for personalized back cushioning.
At Ergo Works, we've specialized in ergonomic solutions since 1994, helping individuals and organizations find seating solutions that fit their needs.
The Right Fit Starts with You.
ErgoSlice is an independent aftermarket accessory brand. This product is not manufactured, sponsored, or endorsed by Herman Miller or MillerKnoll.
ErgoSlice T-Bone FlexBack Cushion for Herman Miller Aeron
SKU:ES-TB100
- Regular price
- $129.99
- Sale price
- $129.99
- Regular price
-
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