What would regular mean to you? I'm 5'6", not long-legged. Was bought some trousers for birthday - wrong size . Changed them assuming regular = fine. Wore them Sat evening (couple of hours). Were pi$$ing me off because were riding up my calf. Now M&S won't exchange for long because say have been worn. (I know they have so don't shout at me.) Just aarrrgggghhhing at their stupid sizes/lenghths in first place.