We are visiting from the 15th until the 18th of December and very much so looking forward to our trip. i've noticed a few threads on here about footwear. I am planning to bring my leather boots that are wool lined. Should these be ok or might I need snowboots? I don't own a pair so would rather not invest in them unless they're necessary... Also, what do most men wear on their feet this time of year in Prague? Thank you.