When someone judges someone else on something so trivial as wearing brand name clothing, they are really a very shallow person. They do not put a lot of emphasis on things that they have to think about or that are very important. Therefore, if all it takes is for someone to wear certain brand name clothing, then that person doesn’t put much emphasis on the important things in life.
They may like fashion and even certain fashion brands, but they don’t know about the person really. They only know what they wear. If someone is judging you based on the brand of clothing that you wear, then that person shouldn’t be your friend. They are not worthy enough to be your friend. It is also important to note that this person’s thoughts are not important also.