Tread comfortably in Smartwools Walking Light Mini Crew sock. Light half cushion design with moisture management for slow strolls to athletic destinations. Two percent of the sale goes directly to the Smartwool Breast Cancer Fund. Product features include: Fabric is 70 percent wool, 28 percent nylon, and 2 percent spandex, Pre-pack of 3 socks, Flat-knit toe seam, Made with New Zealand Merino wool.