Smartwool are masters at creating versatile socks which use technical materials to maximise comfort and support during activities. These Hiking Medium Crew Socks feature WOW technology which uses Merino fibres to create a reinforced sole which is durable and comfortable. Wool is often deemed better than synthetics when used in outdoor socks because it is more efficient in wicking away moisture to keep your feet drier and more comfortable. They feature a medium full-cushion which helps to protect your feet against blisters and abrasions during activities.This versatile sock works hard to keep you warm in winter and cool in summer, allowing you to explore the outdoors throughout the year. The top of the sock features a rib cuff with elastic holds to keep it held up and in place. An elastic arch brace enhances support and fit whilst a flat-knit side panel reduces bunching to maximise ventilation.FeaturesWOW technology - Merino fibres are used to reinforce the sole to maximise durability and comfort.Merino wool - is more efficient at wicking away moisture than synthetics.Rib cuff with elastic holds - keep it held up and in place.Flat knit, side panel - reduces bunching to maximise ventilation.Elastic arch brace - provides additional support to maximise fit outdoors.Smartwool size guideSizeUKEuroSmall2 - 4.534 - 37Medium5 - 7.538 - 41Large8 - 10.542 - 45X Large11 - 13.546 - 49