On interview you can wear a formal dress like dress shirt and dress pant with formal shoes. You also can wear a tie. I try to quote a saying by http://www.fitcustomshirts.com/
Nowadays there are elegant, graceful and decorated pants are available for men. It has not flaps, pockets and valves. Cuffs must be relatively balanced to leg’s length. The cuff for average height’s men should be ¾ inch higher and can be 2 inches larger. Rules for shirts and trousers are mentioned below….! Cotton trousers are men’s favourite!