NEOS overshoes are hard to beat for really foul weather. They are kind of big and clunky, about as awkward as wearing a boot. But they go on and off quite easy, much better than any other overshoe I've tried and they pack down and can be stuffed in a pannier or bag much easier than carrying around a separate pair of boots.
NEOS overshoes are hard to beat for really foul weather.
Hey, had the same problem 2 winters ago and stumbled across BOGS or BOGGS made for fishing and stuff they breath well and are super tough.