i currently only have a 3/2, and sometimes it's just not enough. I will say, however, that if you wear gloves, booties and a hood you will be as warm as you possibly can be in a 3/2. I'll be getting a 4/3 or maybe even a 5/3 in the near future and probly one of those kick-ass Gill windbreakers too. Just talking about this makes me cold, can't wait to 'trunk it in a nice spring seabreeze
