This ensures it's held in place, preventing it from coming lose and pilling, thus because it's fibre more durable.
Think specifically long it will take to grow one tree, and then compare that to a single one season of growing hemp. This is what is known as viral endorsing. https://www.Pressadvantage.com/story/66111-fleet-cost-care-elevates-commercial-fleet-efficiency-with-expert-consultants-and-innovative-solution