Drysuits are designed to prevent or limit water soaking your clothing when fully immersed. Gaining in poularity every year with sea kayakers and whitewater paddlers, this is a serious piece of gear, and although they are pricey, once you have one you will not regret it. There is nothing worse than getting completely changed after a paddling session in a breezy car park, with a drysuit, you just take it off and you are good to go. Most specialist ones have a paddlling specific cut, so you have your full range of movement, latex seals that WILL keep the water out and have tougher materials where you need them.