WATERFLY Waterproof Socks Breathable Sweat-Absorbing Socks for Men Women Trekking Hiking 98% nylon / 2% rubber inner layer: 35% merino wool and 65% nylon MATERIAL - Three layers design, outer layer: 98% nylon, 2% rubber; middle layer: waterproof and breathable film; inner layer: 35% merino wool and 65% nylon, which makes the socks durable and unique BREATHABLE - With breathable nylon, cool and comfortable mesh, accelerating sweat spreading and allowing your feet fresh WATERPROOF - The middle layer film material can effectively prevent water, keeps your feet dry and fresh even rode through creeks, streams, rivers, rain storms, mud and so on ELASTIC - With two sizes and elastic feature, WATERFLY waterproof socks are suitable for various groups and different occasions like cycling, hiking, outdoor sports, daily wear and so on S (4-6)7.1 inch / 18cm (foot), 6.9 inches / 17.5cm (ankle) M (6.5-9) 8.7 inches / 22cm (foot), 7.9 inches / 20cm (ankle) L (9.5-12) 8.9 inches / 22.5cm (foot), 8.5 inches / 21.5cm (ankle) XL (12.5-14.5) 9.3 inches / 23.5cm (foot), 9.1 inches / 23cm (ankle) Weight:0.23 Pounds Face Fabric: The face fabric serves as a protective layer. A durable water repellent finish helps water to bead up and roll of the fabric without saturating it. Interlayer: a high performance lightweight function of waterproof and breathable membrane Liner: On a 3-layer fabric a lining serves as a protective layer that lifts the membrane from the surface of your skin for increased comfort and performance. Rode through creeks, streams, rivers, rain storms, mud and so on Waterproof and breathable membrane: Water droplets can&#039;t pass through the membrane, keeping you dry, but the pores are the perfect to let small water vapor molecules escape rather than building up inside of your socks. Breathable nylon Accelerating sweat spreading Anti bacterial function to reduce bad odour Reinforced heel construction for increased durability and extened wear Ccompletely wrap the feet Full wrap,reduce foot pressure,comfortable to wear Not rap toe and more durable Perfect for a multitude of activities &amp; conditions. 100% Waterproof, 100% Seamlesselasticated Ankle and Insteps offer support and a comfortable fit Three layers design Outer layer: 98% nylon, 2% rubber Middle layer: waterproof and breathable film Inner layer: 35% merino wool and 65% nylon