FFThe classic BASICMAX undershirt serves as a defensive layer against chilly temperatures, as well as sweat during hot weather. It is perfect for protecting expensive clothes from sweat, as well as maintaining the body temperature during outdoor adventures. It doesn't have sleeves, so it is comfortable for arm movements during sports activities or for casual daily activities. Some consider the BASICMAX undershirt irreplaceable just because it offers the “barely there” comfort, but provides its benefits all day long.