Baby Alpaca sweaters from Peru Unlimited are renowned for their softness, comfort, and strength. A great year-round sweater, alpaca hair provides warmth,notweight! Alpacas have one of the finest and most appreciated fibers due to their unique characteristics. You may be aware that Alpaca garments can be found in many different places and that there are various qualities of its fiber, of varying quality; baby alpaca fiber (20.0-22.9 microns) represents just 10% of total yarn sheared from the young adult alpacas, and is highly prized.