Alpaca Sweater, Alpaca Blanket, Alpaca Socks & More - 100% Alpaca Wool - Sun Valley Alpaca Co. FREE 2-3 DAY SHIPPING on $99+! Shop the widest collection of 100% alpaca wool sweaters, scarves, blankets, and stuffed animals at Sun Valley Alpaca Co. Designed in the USA; our style is timeless and modern, so you can enjoy all the benefits natural alpaca wool has to offer.