Marty: You must have got some kind of knock-off LeBra, cuz mine fits like custom made. In fact, I believe it IS custom fitted for the Contour. Looks great. About $79.
As far as leaving it on during wet weather, I've had no problems... yet. LeBra claims that the material breaths well, so the moisture can get out. So far, I can support this claim. No mold.
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97 Contour Sport V6-ATX/KKM/JET chip/rear STB/SVT 16" wheels
BFG G-force KDW's/LeBra/Fogs-as-DRLs/battery in trunk