Is drysuit material different to oilies material? I presume it must be as I've never had properly waterproof oilskins (except maybe mpx up to a certain point) but then why aren't oilies made from the same material as drysuits? cost?
Most decent sailing dry suits are a goretex style waterproof breathable material. But my dry suit is much more waterproof than any gore tex jacket I have owned. I can be out in the rain all day and my shirts still dry.
10 years ago kokotat was worth the premium for goretex. I went from a henrilloyd to kokotat and was wayyy more comfy for college sailing. That said, inflation is a bitch and I think they're quite a bit more than I paid.