Super warm Regia Premium Merino Yak makes super comfy socks—and other accessories and garments! This fingering-weight yarn blends high-quality merino wool from South Africa with yak and polyamide. That touch of yak fiber, more insulating than sheep’s wool, brings an extra warmth to your handknits. Since it’s undyed, the yak also lends a special mélange effect to this yarn’s otherwise deeply saturated colors!