Office Chair Backrest Foam

Currently, specific information about the material and thickness of the backrest foam for the ENOVA Fashion Home Gen 3, X837 Foam Model, and s800 Foam Computer Chairs is not explicitly mentioned in publicly available sources. The following is a compilation of relevant information based on existing data:

ENOVA Fashion Home Gen 3
This model only mentions being equipped with a 'standard foam seat cushion' but does not specify the material of the backrest foam (such as whether it is high-density foam, memory foam, etc.) or its thickness parameters. Its design focuses on ergonomic structure, potentially achieving support through a combination of the backrest curve and foam, but lacks specific data to support this.

X837 Foam Model Computer Chair
The backrest features adjustable functions (lumbar support up and down, front and back adjustment), but the material and thickness of the backrest foam are not mentioned. The installation process involves connecting the backrest to the seat cushion, suggesting that the foam may be a pre-formed modular design to fit the adjustment mechanism, but specific processes (such as foam density, resilience rate) still require further verification.

s800 Foam Computer Chair
The backrest is fixed to the tray with thick screws, supporting multi-level height adjustment and paired with dual-wing lumbar support springs. Despite emphasizing 'precise lumbar support,' the material (such as whether it includes a gel layer or breathable hole design) and thickness data of the backrest foam are not disclosed. Its support may rely more on the spring structure rather than the foam's inherent properties.

Additional Notes
Common materials for office chair backrest foam include regular polyurethane foam, high-density cold-foamed foam, memory foam, etc., with thicknesses typically ranging from 5-10 centimeters to balance support and comfort. For precise parameters, it is recommended to contact the brand directly or consult product testing reports to obtain key indicators such as material density (e.g., 35-45kg/m³ for high-density foam) and resilience rate (≥35% for high quality). Additionally, the design of adjustable backrests may affect the actual experience of the foam, as the adjustment range of the lumbar support can alter local pressure distribution, requiring comprehensive evaluation based on ergonomic testing data.