Cover for Bass Tracker at dock with no roof

I keep a 2010 Pro 16 aluminum Bass Tracker down at the dock(no roof) during the summer and am looking for a cover in the $400 or less range. Do you guys have any reccomendations on a fitted cover that you've had a good experience with or good brand?
Im thinking of putting snaps in to help keep it tight and make it easier to put on, which can be tricky with a rocking boat in the water.

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try Boat Covers & Bimini Tops for your Boat or Pontoon I got one from them in that price range and love it. Made of sunbrella material and warranted for 10 years also semi custom fit a lot better than the generic ones.