Alpaca is some of the most sustainable fiber out there.
Instead of the heavy hooves of cashmere goats and sheep, which can damage lands beyond repair, alpacas have very light feet. So while Mongolia is suffering the leftover barren lands resulting from longtime cashmere farming, the Andes are virtually unaffected.
Alpacas can live pretty much anywhere, such as the nearly uninhabitable higher-than-high Andes. They eat very little, making them an easy animal to sustain, and they drink a lot less than cattle, too. They also don’t pull plants’ roots out when they graze, just eating the yummy grassy bits on the top, allowing the plant to produce new leaves.