The base needs to be right. There is nothing more unpleasant than damp, clinging undergarments irritating your skin. It doesn’t matter how good the rest of your equipment is if you feel uncomfortable in your base layer. Luckily, our Eiger Extreme Collection includes the Moench Advanced ML Half Zip Longsleeve Women. The material combination with Cordura yarn gives the longsleeve shirt durability and abrasion resistance. A thin, Powerdry material under the arms is naturally antibacterial or odor inhibiting. This means that the Moench Advanced Half Zip Longsleeve Men can be easily worn for several days in a row.