Definitely the canvas rather than PVC type. I'm not sure you want a boom up one - you can't use these for towing. If you get a flat one, you can still put a supporting piece of wood (or the boom) under it from the foredeck to the transom. Prop the bow up and the rain will shed fine. P&B's covers are excellent and when tightened up really fit perfectly.
Mike D
N3496
Mike D
N3496