Designed for activities where maximum breathability and minimum insulation are required, the Stormsock Lightweight are comprised of 3 layers each comprising of different essential properties. The merino wool will keep your feet warm, dry and comfortable with its anti-bacterial and anti-odour management properties. The nylon layer protects against abrasion from boots and has a waterproof breathable membrane to keep your feet dry. The Lycra knit gives a performance fit, this and the elastic arch support ensures that the sock stays in position and doesn\'t move when in your boots.WaterproofBreathableMoisture wickingMerino wool knitAnti-bacterial managementAnti-odour propertiesFlat toe seamElastic toe archStretch