I first wrote an intro to a winter wetsuit feature over ten years ago. I have always wanted to do full tests on wetsuits, but sadly, time and money means that isn’t possible. The main bit of that is time, to test one of these bad boys takes a whole winter, by the end of which we’re onto a new model so sadly the best we can do, is just give you a look at what’s out there. As always going into a real life shop is a good idea and getting a wetsuit that actually fits is the most important part of winter warmth. Having said that with all the advancements, it is more than possible to go thinner, the fact that last December I was in Iceland wearing a 4mm suit is proof of that.