Alpaca Crew SocksGreat for all ages and styles. This is a comfortable fit made with baby alpaca (fiber from the very first shear of an alpaca), one of the finest and most luxurious fibers in the world. The sizing on these socks is easy and stretchy to fit many different kinds of feet, without compromising quality and being too big or too small. This is a high quality sock suitable for everyday wear, hiking, cozying up at home, and both warmer and cooler weather.