Smartwool Women's Secret Sleuth II Socks (Pack of 3 Pair) 74% merino wool, 24% nylon, 2% elastane Excellent for use with mary janes, ballet shoes, or boat shoes while keeping your feet loose and odor-free Merino wool has excellent temperature and odor regulating properties WOW (Wool-on-Wool) TechnologyTM is featured in the reinforced sole for excellent comfort and durability Elastic collar for easy on and off Extraordinary comfort, fit and lasting quality