To express 'wear' you must distinguish between (1) wearing on a specific occasion and (2) wearing habitually:
(1a) бІть в + Prepositional
  Вчерђ в теђтре онђ былђ в крђсном плђтье. Yesterday at the theater she was wearing a red dress.
(1b) бІть без + Genitive
  Вчерђ в теђтре онђ былђ без тџфель. Yesterday at the theater she was not wearing shoes (was barefoot).
 
(2a) ходќть в + Prepositional
  Онђ всегдђ хћдит в длќнных плђтьях. She always wears long dresses.
(2b) ходќть без + Genitive
  Ћн всегдђ хћдит без шђпки. He never wears hats.
 
(2c) носќть + Accusative (synonymous with 2a, above)
  Онђ всегдђ нћсит длќнные плђтья. She always wears long dresses.
(2d) не носќть + Accusative (synonymous with 2b, above)
  Ћн не нћсит шђпку. He never wears hats.