Trying to find the right winter cover for my class c

I have a 2014 coachman leprechaun 319 ds it is 33ft from front bumper to rear ladder any of you ladies or gentleman have a similar rv in size with a cover that you can advise me of the proper size im thinking of a cover that says fits 34 to 36 feet , I know they shink alittle over time or should I go with a cover that says 32 to 33 ft I don't want to go to small and I don't want to go to big either .... what to think ?