Our best-selling crewneck sweater is powered by 65% Royal Alpaca - a natural fiber known for warmth, breathability, and durability. Unlike traditional wool, alpaca helps regulate temperature while resisting odor for longer wear between washes. This super soft alpaca sweater is a naturally smarter layer you can rely on year-round. 65% Royal Alpaca Fiber / 35% Recycled Nylon Hand washing on cold is best. If you use the machine, wash on delicate and cold, Lay flat to dry.