In some cultures, men's hair is expected to be kept short. In other cultures (and sub-cultures) though, men are at liberty to choose whether to wear their hair short or long. Surprisingly, where this is the case, many men choose to wear their hair long: meaning that had they more freedom to choose (without fear of social frowns), many men would opt for long hair. But even where men wear their hair long freely, they usually don't let it keep on growing unchecked. They have to occasionally trim it, to keep it long, but in a nice kind of way. It is here, then, that Men's Long Haircuts make their entry into the picture.
In most cases, Men's Long Haircuts aim to maintain the length of the hair at shoulder level, for anything beyond this would seem like going too far in some settings. This is especially the case for men involved in professional undertakings but who would want to wear their hair long nonetheless.
Most Men's Long Haircuts also tend to focus on trimming the frontal edges of the hair, so that the hair doesn't fall over into the face (where it can create the impression that the man is using it as a façade to hide behind). For a woman, having to flip hair that falls over into the eyes is considered sexy. For a man, the same action of having to flip over hair getting into sight's way would probably be frowned about; especially in formal settings where that is considered a classic sign of rebelliousness.
One of the most popular men's long haircuts is where the hair is worn long and straight, up to shoulder level. This is the look we tend to see on rock stars and some football (soccer) stars. Some women confess to finding this look 'rather irresistible,' which explains why men who want to come across as 'sexy' often opt to go with this look.