An undershirt has no sleeves; it fits over the body. It is made of thin materials, usually of cotton. Undershirts do not usually have prints on them.
It is a set of several undershirts sold under one product ID. An undershirt has no sleeves; it fits over the body. It is made of thin materials, usually of cotton. Undershirts do not usually have prints on them.
A set of underwear. For example, tank top + briefs or long sleeve + long johns. Sets of the same items, such as “Undershirts, 2 pieces” or “Briefs, 3 pieces” are not an underwear set.