>Anyone use spesh defrosters? Any good at keeping water out?<
Yes and most definitely no.
The cuff, such as it is, is all but useless at keeping water out. As others have pointed out they aren’t even efficient at keeping out the cold. If you get them wet inside (highly likely)plan on using them only once a week because that’s how long it takes to dry the bl@@dy things.
I’ve tried every combination going: two pairs of socks, Goretex socks, socks plus neoprene kayak boots. However, once you start riding in continous wheel spray I’ve not found anything that will stop it running down your leg. Winter boots are excellent at keeping water in – once freezing cold water fills them you’re getting cold feet. Seems to me that most of the product designers had brain freeze when they got to the cuff 😉 The answer has to lie with some form of gaiter that will provide a watertight seal around your bare leg – anyone know if any of the running Gaiters do such a thing?