I wear as do alot of people, Larger/Baggier playing jerseys and trousers as theres more chance of bounces for instance when your running. The excess material means the clothing isnt as tight and so its not as easy to break paint on them.
if you wear clothes too baggy u could b told to change tops, also trousers if there too baggy u can b told to tape them up. So dont wear anything too bagg .
might be an idea to read the rules aswell just to make sure u aint breaking them with your clothing, i understand ure allowed 2 layers including your jersey?