Weather protection for wide angle.

[Luke__S]

For my 70-200 and 300 lenses I use the think tank hydrophobia and I was wondering if anybody had a recommendation for something like that that would work with a wide angle lens like a 17-40. The 70-200 hydrophobia will fit but its not a great fit and the holes are designed to line-up with the tripod collar on the lens rather than the bottom of the camera. I have used those cheap plastic rain covers in the past but I am looking for something more durable.

Thanks, Luke