From the harvested outer layers of the banana tree after it is bleached and pulped, the dried pulp is hand spun into this highly textured yarn. Although, banana silk has no silk content, it is so called because it looks like silk with its gorgeous sheen.
100 grams 20 metres
The following link provides some interesting background information about this wonderful fibre.
https://textilelearner.net/banana-fiber-properties-manufacturing/