... washable & Dryable Our garments are made of the finest 100% natural merino wool,which is put through a special process ... naturally elastic,and long-wearing for years of comfort.Materials:100% woolFabric construction:Jersey,Interlock,Rib,Terry,Brushed,Pointelle...Fabric weight ... Snowboarding,Skiing,Hiking,Hunting,fishing,Bicyling,Jogging,Camping,Working outdoors... Men's Merino Wool Fabric Underwear