There was a time when men normally wore Salwar Kameez. That was the time of Raja Maharaja (Kings). The traditional man salwar kameez is like women salwar kameez with the following difference:
Men salwar kameez is wide spread from top to bottom known as Pathani Suit.
Normally the kameez is very loose with full sleeves, cuff from front sleeve part and wide collar with pocket on front left side.
The length of kameez is normally upto or more than knee. There are long slits on both sides. Normally it is straight from chest to bottom. There is a strap on front with 3-4 buttons after collar.