This is one tough pair that can stand up to the job. These heavyweight, all-season socks are constructed with naturally odor-resistant Merino wool that's been engineered to regulate foot temperature. Arch support reduces foot fatigue while reinforced zones deliver durability. Heavyweight Merino Wool Steel Toe Performance Work Sock Product Features : 0 : Comfortable seamless toeTemperature regulating for all season comfortNaturally odor resistant Merino woolArch support to reduce foot fatigueReinforced zones for added durability Heavyweight Merino Wool Steel Toe Performance Work Socks in Grey, Size: Medium by Ariat