Waterproof shoe covers?

I'm looking for waterproof shoe covers that are NOT super warm/fleece lined. I'm torn between waterproof socks/shoe covers but I think the shoe covers are more versatile and can come on/off easier during a ride.

This would be for SIDI MTB shoes with Frog cleats. (recessed)

Don't want them super bulky, just something I can throw over the shoes during Ride the Rockies in case it starts to pour.

Mahalo!
Denise

Well the description for these sounds good, except for the reference to road shoes, and they're on sale. Maybe call TE and ask if they will also work for mountain bike shoes.

http://www.teamestrogen.com/prodPI_14181101.html

There are a couple of other possibilities on this page, such as the ones from Vaude and Bellweather.

http://www.teamestrogen.com/product/...1-c39-c43.html