On the rare occasion I venture out in the cold weather these days I still wear my faithful pair of "Boom 80's" (bought in the early 80's, too!). Still as good as ever - just wear a thin pair of socks and feet stay warm all day in freezing conditions, amazing.
Only drawbacks are non-grippy flat, stiff soles and you look a right twat in them (most folks don't notice them on me at all
)
Anybody remember these?