I have a pair of Helly Hanson "packable" rain pants. They might be 8 years old. They stuff into the back pocket and snap closed as a pretty small package. They have a snap closed cuff but you really need to use a pants clip or strap to keep them away from the chain rings. I saw them recently in a store somewhere, possibly Eastern Mountain Sports? If you have an E.M.S. store nearby I would take a look.