Created by UphillSport for their Tactical socks collection, based on their vast experience supplying socks to the Finnish military, UphillSport CONTROL Socks are highly breathable, lightweight knits made with Upcycled Cotton in a blend with strong, durable performance fibres, ideal in everyday use for indoors work from office to control booth. The socks are a thermal grade 2, so they will be comfortably cool in warmer conditions. Despite being fine, the Finnish-designed-and-made socks have a three-layer Duratech construction that includes a thicker, smooth knit sole, reinforced for increased durability. The socks are a crew length, and have a supportive arch band that helps to keep them in place on the foot, and smooth toe seams to prevent rubbing and blisters.