簡單英文check grammer~ thx!!! 15points~

To identify the brand extension between IT students and Non-IT students towards Fashionable Clothes in University.

The sentence is perfectly okay except that you may need to change clothes to clothing.
Moreover, please do not use capital letters for some of the words which are not specific terms nor names :
To identify the brand extension between IT students and non-IT students towards fashionable clothing in university.

what do you mean by brand extension? and fashionable clothes sounds a bit unprofessional.

唔係好明個意思其實......

但係就咁睇文法就冇問題