How was the mantle created?

I'm curious, how did the mantle come to be? Could you elaborate on the creation process? I'm particularly interested in understanding the materials used, the techniques employed, and the inspiration behind its design. Was it a collaborative effort, or did one individual conceive and bring it to life? Did it undergo any iterations or revisions before it reached its final form? I'm fascinated by the story behind its creation and how it has evolved over time.