The special, curled fibers with barbed edges provide the fibers an interlocking aspect that gives uses in many marketplaces and for diverse purposes. The name excelsior originated in America and excelsior has long been made in America for over a century. In The usa excelsior has no other general title; https://edenproductsltd.co.uk/2025/03/21/why-natural-wood-wool-is-one-of-the-best-eco-friendly-packaging-materials/