Strength – Alpaca wool fibers are fine, lightweight and silky. Yet this luxury fiber has great strength and durability. Don't let the cute Alpaca face fool you, these animals are tough and strong, surviving long, cold Andean winters. It's no wonder Alpaca fiber lasts longer than most any other luxury fiber, including other wools, cashmere, and silk. With proper care, high quality Alpaca apparel can be an heirloom passed down through the generations.