takeonafrica

Thanks Machka!
Where? Starting with Lake Baikal, Siberia. I think that temps below -30 won't be prolonged (not over weeks anyway) and it will certainly be a lot warmer by May so probs -40 rated boots would be ok. That said, since the following winter, if all goes to plan, would probably be below -30 for prolonged periods, I could invest in -70 boots that will do for both trips. Any idea up to what temps I could use -70 rated boots without getting too hot/sweaty feet or is this not a problem?!
I'd be outside for long periods but mostly cycling in the day.
I know what you mean about cold feet!