Office Chair Thickened Seat
If you need to directly purchase thickened seat cushion accessories, we recommend the Qiyu Youxuan's coccyx-relieving memory foam seat cushion; if you need to replace the entire office chair, consider prioritizing the Sihoo C300 Second Generation Pro or the Henglin Counterattack Second Generation ergonomic chairs.

Thickened Seat Cushion Accessory Recommendations
The coccyx-relieving memory foam seat cushion launched by Qiyu Youxuan is a professional accessory designed for prolonged sitting scenarios. Its core advantage lies in the use of high-density memory foam material, which disperses hip pressure through its slow rebound properties, reducing issues of poor blood circulation caused by localized pressure. Experimental data shows that this material can maintain over 90% rebound rate after 8 hours of continuous pressure, effectively avoiding the defect of easy collapse seen in traditional sponge cushions. Additionally, the cushion surface features a honeycomb breathable structure, reducing the stuffy feeling during prolonged sitting, making it suitable for summer or non-air-conditioned environments.
Analysis of Thickened Design in Overall Office Chairs
Sihoo C300 Second Generation Pro This model adopts widened and thickened cloud-like highly elastic breathable mesh fabric, achieving a balance between support and breathability through a three-layer composite structure. The mesh fabric surface is treated with water repellent properties, resisting penetration by liquids such as coffee and tea, facilitating daily cleaning. Its Domino 2.0 lumbar support system uses dynamic tracking technology to automatically adjust the support angle according to changes in sitting posture, particularly suitable for individuals with lumbar disc herniation or those prone to fatigue from prolonged sitting. Measured data shows that this design can improve the uniformity of lumbar pressure distribution by 35%, reducing the risk of lumbar muscle strain.
Henglin Counterattack Second Generation This model is equipped with a native sponge thickened seat cushion, 8 centimeters thick, achieving pressure dispersion through high-density foaming technology. Its core innovation lies in the 15ยฐ inclined design at the front edge of the cushion, reducing pressure on the upper thighs and avoiding numbness in the legs from prolonged sitting. Ergonomic testing shows that this design can reduce the peak pressure on the buttocks by 28% while maintaining sitting stability. Additionally, the cushion surface is covered with non-slip fabric, preventing sitting posture shifts caused by sliding.
Purchase Recommendations
- Short-term improvement needs: Prioritize choosing memory foam cushions, which are cost-effective and highly adaptable, and can be directly placed on existing office chairs.
- Long-term health investment: It is recommended to replace with an ergonomic chair, focusing on the collaborative design of the lumbar support system and cushion material to avoid support imbalance caused by single thickening.
- Material selection: Mesh fabric is suitable for hot and humid environments, while sponge material provides a softer touch. The choice should be based on personal preference and usage scenario.




