Allseating Inertia High Back Ergonomic Mesh Office Chair with Lumbar Support [Model 77140] - Perfect for Home Office, Gaming & Executive Workspaces

Product Description

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The Inertia high back mesh office chair from Allseating is designed to deliver an unmatched level of ergonomic support and comfort.

Experience unparalleled comfort with our ergonomically designed chair, featuring a luxuriously thick padded foam seat cushion. This cushion is available in your choice of durable, commercial-grade fabric or vinyl, ensuring longevity and style for any workplace environment.

The chair boasts a high backrest constructed from breathable screen mesh, offering exceptional ventilation and support to keep you comfortable throughout the day. Pneumatic seat height adjustment allows you to easily customize your seating experience, finding the perfect height for your desk.

Enjoy a full range of motion with the chair’s 360-degree swivel feature, complemented by a tilt mechanism that includes a convenient tilt lock for added stability. You can also adjust the tilt tension to match your preferences, ensuring optimal comfort while you work.

The optional adjustable-height T-shape task arms, which provide vital support without obstructing movement, add to your comfort. The seat is designed with a waterfall edge to promote better circulation and reduce pressure on your legs during long sitting periods.

Built to last, the chair features a heavy-duty five-star base equipped with dual-wheel carpet casters, providing smooth mobility across various surfaces. For those seeking personalized depth adjustment, an optional seat slider is available at a minimal extra charge, allowing you to tailor the seat depth to your liking.

This chair can be configured to include a back height adjustment option (Model# 77140) or ordered without it (Model# 77189). If you opt for the back height adjustment, you will also benefit from the tilt feature with tilt tension adjustment.

Designed to accommodate users weighing up to 350 lbs, this chair is constructed to meet or exceed rigorous ANSI/BIFMA standards for safety and durability. 

Please note that the main image showcases a striking Sky Blue back, paired with Momentum Free Evening fabric (Grade 6), and features a stylish aluminum base. This specific fabric does require an additional 10 business days for shipping, ensuring that you receive a product of the highest quality tailored to your specifications.

Dimensions: 
Overall: 39" - 43"H x 28.5"W x 28.5"D
Back Size: 19"W x  21"H
Seat Size: 20"W x 19.5"D
Seat Height: 17" - 21"H

12 year warranty from

Normally ships in 4-5 business days from Toronto CA.

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for Inertia mesh backrest color chart


Special Order / Custom Order - This product may not be returned