Any thoughts of a cape/poncho?. I'm leaning in that direction.
I have my Cycle rain Cape at The Ready in My front Bag all winter ..
If you got a Carradice saddle bag, that is what those 4 D Rings on the Flap were to be Tying on ..
Poncho .. Big rectangle. not so well suited.. Cycle capes are Conic , so dont flap like a Flag in the wind..