Choose canvas for shade that sheds rain and breathes: boat covers, bimini tops, T-tops, awnings and outdoor cushions. Choose marine vinyl for a waterproof surface that wipes clean, such as seating that gets sat on wet. Choose mesh for shade with a breeze and the view kept open, such as drop screens; mesh will not keep you dry. Choose clear vinyl when you need to see through it. Order swatches and look at them in the light where they will live.