Injinji sock liners are designed to be worn as the first line of defense against excess moisture and blisters, keeping your feet dry, comfortable, and cool. Injinji sock liners are light and breathable for excellent versatility. Use them as a light first layer paired with a thicker outer layer, or wear our toesock liners alone as your go-to sock for everyday adventures. The Injinji Liner Crew NuWool is made from Merino Wool.