The Men's Hike Midweight Merino Endurance Boot Sock is designed to provide dry, warm and comfortable feet during outdoor activities. With excellent moisture management thanks to overfoot ventilation and carefully considered details including flat toe seams and Thermofit technology, these socks offer all day protection and next-to-skin comfort.  The snug merino wool blend will keep your toes warm in the harshest of weather. Performance Fit Moisture management ThermoFit Flat toe seam Forward Flex ShockZones Y-Heel Material: 26% New Wool, 18% Merino Wool, 38% Nylon/Polyamide, 17% Endurofil/Polypropylene, 1% Lycra/Elastane Colour: Navy