If you want warmth look no further than Percussion Grand Nord trousers. (having had, and having, a couple of other very good pairs of Percussion trousers) Treated myself to a pair of GN's over the Xmas break and wore them whilst out foxing last Friday night. Legs lovely and comfy warm right up to the point where a sub-zero night became a night of freezing fog which stopped play. Went home with a vixen added to the score too so a good night