Piper Sock is coming from Pantherella . They are known for being one of the finest sock makers in the world. Fine and classy like a single malt whisky but much more comfortable. They used merino wool to make these and all I can say is that it was a good choice. the sock feels comfy and soft. Everything you are looking for! Pantherella Piper Sock Navy Smooth toe-seam Flat knit Standard/Long Anklet Material: 69/31% Merino Wool, Nylon Made in England