Soft, durable and wrinkle resistant - and eco-friendly, too! Alpaca Casual Socks from Flory's Alpaca Farm are stylish, as well. Alpaca fleece is a warm natural fiber you'll love to wear every day. Machine wash cold, lay flat to dry. Crew socks extend above the ankle, Ski socks cover the calf, and knee socks, well, they're knee socks!