One must not wear clothing that is revealing as it degrades a person. Wearing such clothes can bring lustful thoughts to an onlooker. It brings unnecessary and inappropriate attention to oneself and shame to oneself.
Shatanand explains that clothing is primarily to cover the body and so those clothes worn, which reveal the body, do not serve their purpose. Indeed by wearing such clothes, one is considered naked.
Sadachardipika explains, ‘Clothing which is small (or short), torn so that it reveals the body, faint or see-through or even clothing which is dirty should never be worn.‘ Similarly, it is written that clothing which is too expensive or too cheap should not be used, as their respective qualities will surely change a person.
Clothing has a lot to answer for with regards to impressions. Those who wear clothing that is revealing, dirty etc. give the wrong impression. Therefore it is always important to maintain a sensible dressing habit which is respectful.
It has to be said though that many youths born in the west do feel pressure to dress in such a way, which is sometimes more revealing than appropriate.