Common Models of Office Chairs

Common office chair models include the SumLush Xia Mu Fit CC, SumLush Xia Mu Fit2, and JD.com Z5 Pro (Model 6135). Here are the detailed introductions:

SumLush Xia Mu Fit CC Ergonomic Chair
The core highlight of this model lies in its ZeroG Flow Dynamic Lumbar Support System, which integrates three major technological modules:

1. BackFit Four-Way Back and Lumbar Adjustment System: Supports four-way adjustment (up, down, forward, backward), dynamically tracking the spinal curve to enhance lumbar support fit by 85% and effectively distribute lower back pressure;
2. S-Flex Dynamic Spinal Pressure Distribution Adaptation System: Uses elastic materials to simulate the natural curvature of the spine, improving lumbar muscle support by 115% and reducing fatigue from prolonged sitting;
3. FullSup Full Back Support Structure: Covers the entire back area to prevent localized pressure concentration, suitable for office scenarios requiring prolonged sitting.

SumLush Xia Mu Fit2 Ergonomic Chair
As an upgraded version, its ZeroG 2.0 Dynamic Lumbar Support System incorporates an Automatic Three-Zone Floating Wing Lumbar Tracking Structure, with significant technological optimizations:

1. Lumbar Protection: Through zoned support design, lumbar injury risk is reduced by 99%, with fit improved by 115%, particularly suitable for individuals with sensitive lumbar regions;
2. Lumbar Muscle Support: Utilizes high-elasticity materials to enhance lumbar muscle support by 160%, alleviating muscle tension caused by improper sitting postures;
3. Dynamic Adaptation: The floating wing structure automatically adjusts the support angle based on sitting posture changes, accommodating users of different body types.

JD.com Z5 Pro Ergonomic Chair (Model 6135)
This model features a Dynamic Rotating Lumbar Support as its core design, with functional characteristics including:

1. Lumbar Support Adjustment: Supports 20° flexible rotation and three-level lumbar support modes, allowing users to adjust support intensity according to their needs and adapt to different sitting postures;
2. Backrest Adjustment: A 50mm height-adjustable backrest accommodates height differences, while a 140° wide recline angle design meets午休 (noon break) needs;
3. Seat Cushion Comfort: A 10.5cm thick, high-elasticity pressure-relieving seat cushion disperses hip pressure, suitable for prolonged office work.

All these models optimize support performance through ergonomic design, allowing users to choose the appropriate product based on their specific needs (such as lumbar protection, dynamic adaptation, or basic comfort).