Give your training a boost in the Adrenaline Ultra Lt Mini Crew sock from Smartwool. The SmartFit system employs flexible inserts to reduce slipping. The versatile fabric blend wicks moisture, adapting to any athletic venue. Product features include: 69 percent wool, 30 percent nylon, and 1 percent spandex fabrication, Made with New Zealand Merino wool, Micro-cushioned sole, Flat-knit seams, Pre-pack of 3 socks.