[recycled sixtie]

I would like to hear your experiences of hypothermia and what you do to prevent it happening. Last Saturday was a rainy cold day. +1C or 34 F. I cycled for about an hour and a half in steady rain on my mountain bike. Started off feeling good but ended up pretty wasted from the cold and wet. Instead of putting rain pants on I put on North Face pants but they were not rainproof. This was obviously a mistake as I found out the rain went through to my regular lined pants. I had a head band over my ears and bike helmet on. I think the hypothermia came mostly from the rain and cold impacting my face and forehead. The next day I felt like crap. Headache with a head cold.

My top jacket was a North Face rain jacket and it worked well keeping the rain out.
Tell me your experiences of hypothermia and what you do to prevent it. Kind of gear and what do you do to help your face and forehead? I cannot imagine wearing a clear visor.
Thanks in advance!