That's what the forecast currently is for Bath next week. I am cold-blooded and my hands always seem to get numb even with gloves. Should I wear more than one top? What sort of trousers/leggings? Some of the pictures from last year's HM show people in shorts and singlets but when you run fast you generate a lot of body heat. Any recommendations to help an 'also-ran' plodder avoid hypothermia?