Loose Pile Crew Socks BlackThe Loose Pile Crew Socks in Black by RoToTo is crafted with a stretchy knit fabric that fits your foot securely, knitted using special traditional machinery that can only be found in the Nara Prefecture of Japan. The socks feature a ribbed opening increases comfort, while the pile lining on the sole offers a fluffy texture. Stretchy knit fabric Traditional knitting techniques Ribbed opening Pile lining on the sole 44%cotton, 44%acrylic, 8%nylon,