OYADM Carbon Fiber Black Soft Knee Side Cushion Pad Thigh Support Comfort Pillow， Side Console Knee Support Pillow Foot Support Pad

Very good product. Don’t think it’s carbon fibre material but the quality is very good. I might order it again for a different usage.strong adhesive and Velcro. The foam inside is comfy and bouncy. Retracts back to its normal state.