Another option for both warmth & added rain/wet protection might be using the *Polare Due & wearing Gore's Alp-X GT rain pants over top for total rain/slush protection (they have a great super light weight rain/wind jacket, too...ALP-X 2.0 GT). If you do try these pants, make sure you purchase a good leg band to keep the bottom pants leg out of the chain, as they are somewhat baggy from the knee down. They are very light weight and pretty packable (if you use a pack). I like a leg band made by Dueter...you might have to special order from your local bike shop...$11.00, but worth it (I'll post a pic on the Gore GT pants page, as all who purchase these pants should deff. have this band!).