The New Cross

The clothes one wears will be the first impression of what they buy into to others. As Lurie pointed out, whether they wear it as a symbol of status or for an associated magic that goes with them, they are communicating who they wish to associate themselves with (whether or not they consciously mean to).
On a college campus, image often takes a high priority since it is part of  the development of individual identity, helping to exaggerate these impressions and making each association more significant. Body space is prime real-estate, and students have to be careful with how they use it. In today's society, religion has become much less pronounced and, as a result, so has religiously affiliated clothing. For example, it is common for Crosses adorn necklaces that are tucked away, a modest representation of faith. When something is worn outright such as a hijabi, as Shabana Mir said, it will be viewed extremely and with prejudice.
Because of these various prejudices, students use their body-space for more acceptable clothing that still allows them to identify with a larger group. This want has manifested itself in the absurd number of Mac Laptops, Beats by Dr. Dre headphones, and other accessories that serve both as a status symbol and unifier. Somewhat (un?)fortunately, Beats are now made in different colors, so that people are more able to express themselves while remaining in the comfort of conformity.
If we were to try and identify religious affiliations through clothing alone, it might seem that large companies are the new religion.