In trapping your foot you mean your feet being prevented from smoothly and quickly putting your foot down to support your bike then I would have to say that I guess it could happen but has never happened to me nor did I have to go through a learning period to get used to it. My tendency is to bring my feet toward me,first, then down to the ground if my feet are extended forward. I have size 11 feet and my feet fit loosely in the pocket. It was 27 deg. during my ride home this morning at 65 mph. placed my feet in the pockets and the wind just flew by me. Awesome deflectors. Also, if you like to ride with legs stretched forward and toes pointed outward...then these are not for you.